Answer plz or i will fight you

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

Which expression is equivalent to -5(3x - 6/7)

Which of the following values in the set below will make the equation 5x + 6 = 6 true? (only input the number.) {0, 1, 2, 3, 4}