Karl participated in a two-day charity walk. his parents donated money for each mile he walked. karl walked 3 1/4 miles on the first day and 5 1/2 miles on the second day. his parents donated $175. how much money did his parents pay for each mile

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.

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

Find the zeros of each function. f(x) = 6x^2 - 7x - 20