What is the variable in this expression 12/w+3

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g

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?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12