farmer jones has 140 feet of fencing to construct a rectangular corral.
if x represents the width of the corral, which function can be used to express the area a of
the corral as a function of x?
a. a(x) = 70x
b. a(x) = x(70 - x)
c. a(x) = x(140 - x)
d. a(x) = x(140 - 2x)

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

Icould really use some with this question.

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in