!!PLEASE HELP!!!
I cant seem to understand this stuff

repost!! help need answer 80+20 find it ...... The problem and answer choices are provided. It would be appreciated if I could get an answer as soon as possible.:D According to the video, the work of Heating and Air Conditioning Mechanics and Installers combines the skills of which workers? Check all that apply. Pump Operators Plumbers Electricians Refrigeration Specialists Power Plant Technicians Hydroelectric Production Managers Helpppppppp please its due today Dng k hiu ton hc vit mnh sau:nh ngha : tam gic ABC gi l tam gic cn nu c hai gc bng nhau please help the picture is above ! Imagine that you are writing a weather diary. Scientists will read the diary in 500 years. Write a detailed report to describe the weather this year. Describe how the weather affected the area where you live. Describe how it might affect areas around the world. Your showing your buyers a house that clearly has a second-story addition. What important thing do you need to find out from the sellers? characteristics of mixtures Roger, the owner of the store, El mirador, is a very respectable gentleman. This sentence has _______ nouns. Where are halogens on the periodic table? Can someone please help me !!!! [tex]\frac{2}{5}[/tex](6-5p) check which of the following numbers are in proportion,10,20,30,40 What is detailed in this speech?oAthe causes of the Quasi-WarBthe causes of the Barbary WarsO0the causes of the War of 1812Dthe causes of the Revolutionary War How did the Egyptians know how many enemy soldiers they hadkilled?A. Egyptians would cut off the right hand of enemy soldiers and present it to thePharaoh.B. Egyptians had counting officials survey the dead on the battle field.C. Egyptians would consult with the opposing army and trade death toll scrolls.D. Egyptians would cut off the head of an enemy soldier and present it to the Pharaoh. Look at the arithmetic pattern shown here.Select the Hint button to view a hint.Using the variable n for the term, describe the sequence. The conversion of acetyl chloride to methyl acetate occurs via the following two-step mechanism: Reaction sequence of acetyl chloride to methyl acetateAccess the text alternative for PROBLEMS Kinetics and Rate Laws 6.49. Add curved arrows to show the movement of the electrons in each step. Write the rate equation for this reaction, assuming the first step is rate-determining. If the concentration of were increased 10 times, what would happen to the rate of the reaction? If the concentrations of both and were increased 10 times, what would happen to the rate of the reaction? Classify the conversion of acetyl chloride to methyl acetate as an addition, elimination, or substitution. PLEASE HELP I KNOW THIS IS A LOT TO DO BUT IM GIVING ALL MY POINTS!!!Design your own experiment to test how your body changes during exercise. You may develop this new experiment to test the changes in heart rate, breathing rate, or any other parameter occurring during exercise.First, formulate a question to answer through scientific investigation. Keep in mind that you should be able to answer your question with measurable data. Write your question here. Write your plan for the experiment. Note the dependent and independent variables. To ensure that your results test only the dependent variable, consider how you will control outside factors.Write down your prediction about the result of the experiment.Carry out your experiment and record your readings in the form of a table.Based on the results shown in the graph, write a conclusion paragraph that answers the following questions:Did you accurately predict the results?What can you conclude from the results?Can you relate your results to the bodys regulation of homeostasis?Were there any limitations on your experiment?How could you improve the accuracy of your experiment if time, access to resources, and cost were not issues?