The identity property of addition states that a + 0 = a
Your answer is identity property of addition.
Multiply that by the height since the base is already length X width thats all you need to do, and you get 1562.4!
8.6 because 1 is not great enough to boost that 6 up to a 7
If you follow the steps of PEMDAS it should be Multiply by 3,subtract 2.
