Shoe store a is having a sale in which every pair of shoes is 40% off the regular price.

shoe store b is having a sale in which $40 is deducted from the regular price.

part a richard is comparing the price of the same pair of shoes shoes in both stores. in both stores, the shoes normally sales for $120. which store has the better bargain?

part b gwen buys 3 identical pairs of shoes at shoe store a. she pays $110.25 after the discount. what is the regular price of each pair.

To find the extreme values of a function f(x. y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x, y)=xy