Find the area of the rectangle.

7x + 1

8x

(1 point)

A 15x + 1

B 55x ^ 2 + 8x

C 56x + 8

D 15x ^ 2 + 9x

To find the area of a rectangle, you multiply the length by the width.

The length of the rectangle is given as 7x + 1 and the width is given as 8x.

Therefore, the area of the rectangle is (7x + 1) * 8x.

To simplify this expression, you can distribute the 8x to both terms in the parentheses:

8x * 7x + 8x * 1 = 56x^2 + 8x.

Therefore, the correct answer is B) 55x^2 + 8x.