The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length? А. 12 inches
B. 15 inches
C. 21 inches
D.40 inches

We know that,

☆ Perimeter of a Rectangle = 2 (length + width)

Hence,

42 = 2 (length + 6)

or, 42/2 = length + 6

or, 21 = length + 6

or, length = 21 - 6

or, length = 15

The length is 15 inches.

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

f(x)=4

step-by-step explanation: