Answer:
use parentheses to show multiplication rather than an x because it is detected as a letter x instead of a times symbol
Step-by-step explanation:
-11(7)(x-6)13
Perimeter = 93 x 2 + 63 x 2 = 186 + 126 = 312 feet
The sum of the 9th square number and 3rd cube number is 108

Total amount of Brian paid is $48.30.
Hope this helps. - M