You have to Do all 8

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?

What is the temperature in degrees celsius of a substance with a tempature of 49k

What are two different ways you could find the value of a? explain these methods.