Simplify 4.51 to the power of 0

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.

Which of the following vectors are orthogonal to (2,1)? check all that apply

Fiona has to plot a histogram of the given data