Answer:
x = 12
x = 7
Step-by-step explanation:
x - 2 = 10
The inverse of subtraction is addition so add 2 to 10
2 + 10 = 12
x + 6 = 13
The inverse of addition is subtraction so subtract 6 to 13
6 - 13 = 7
12 feet squared.
The formula is (A*B)/2. (Remember, multiply first, then divide.)
B. Multiplying by 45 is the same as multiplying by 80%.
Associative
you can change (8*5) *10 to (8*10) *5
You can change 8*( 5*10) to 10* (8*5)
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= 6 × 81 = 486 
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