The average value of a function f(x, y) over a rectangle R is defined to be fave = 1 A(R) R f(x, y) dA. Find the average value of f over the given rectangle. f(x, y) = 4x2y, R has vertices (−5, 0), (−5, 4), (5, 4), (5, 0).

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.