Write a sentence as an equation The product of 248 and a is 391

Evaluate the following expression 1/3^2

Plzzz i beg u so much asap ! what is the slope of this line? enter your answer in the box.

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.