The grounds crew at a college is installing a path around a pond on campus as shown. 9x + 10x? - x

4x2 - 7x + 8

-x?+ 9x + 12

What is the perimeter of the path?

A.

-13 + 13.12 + 110 + 20

B. 12r2 + 2 + 20

C.-13 + 15x2 + 257 + 20

D. 12.12 + 25 + 20

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

What is a rational number between 9.5 and 9.7

Two rectangular prisms have the same volume. the area of the base of the blue prism is 418 4 1 8 square units. the area of the base of the red prism is one-half that of the blue prism. which statement is true?