Answer:
96
Step-by-step explanation:
8x(5+7)
Parentheses first
8* (12)
Then multiply
Area = base × height
31.5 = base × 6.3
base = 5 ft
36 Miles
Step-by-step explanation: 15 + 9 + 12 = 36 miles
the result is : 14x + 27