How many yards are there in 1260 feet? a. 105 yards b. 210 yards c. 3780 yards d. 420 yards

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.

If 3x+8=3x+8 is it one solution or no solution

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!