16
7(7 + 9)
7 is the product of the sum 16-9
7 & 9 7 + 9 = 16 7 X 9 = 63
9
No because 9+7 = 16 which is a rational number
22 is.
11.
You can't have the sum of one thing. Factors multiply to get a product. 7 x 9 = 63. If you add those two numbers, you will get a sum. 7 + 9 = 16
-7 + 9 = 2 -7 - 9 = -16
9 + 7 = 16 9 - 7 = 2
4x(7+9)= 28+36=64.
It is 9*(n + 7)