Correct + best explanation gets brainliest. the perimeter of a rectangle is 72 cm. the length, l, of the rectangle is 6 cm longer than the width, w. what is the width of the rectangle? a. 10 cm b. 8 cm c. 15 cm d. 33 cm

Step-by-step explanation:

Perimeter = 2 x (length + width)

72 = 2 x ( l + w)

Because l = w +6

72 = 2 x (w + 6 + w)

= 2 x (2w + 6)

= 4w + 12

4w = 60

w = 15 cm

The answer is C.

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.