A rectangle has a length of 3x + 9 and a width of 5x - 4. The perimeter of the rectangle is 106 units. Find the
width of the rectangle.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet