Two sides of a rectangle are x + 8 and 2x - 1. Write an expression that represents
the perimeter of the rectangle.

6x + 14 cm

Step-by-step explanation:

side(1) of rectangle = x + 8

side(2) of rectangle = 2x - 1

perimeter of rectangle = 2(L+B)

                                      =2(x + 8 + 2x - 1)

                                      =2(3x + 7)

                                      =6x + 14

therefore the perimeter of the rectangle is 6x + 14 cm

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