What number should be placed in the box to complete the division calculation?

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Which of the following is the correct ratio for converting kilograms to grams

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.