Anne is taping 7 boxes for storage. she uses feet of tape to close each box.
how much tape will anne need to tape the boxes?
express your answer in simplest form.
a.
7 1/2 feet
b.
10 1/2 feet
c.
11 feet
d.
12 feet

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.

Find the solution of each of the following.

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?