I believe the answer is A,
(10-6)2+6•2-(3+2)2
4•2+6•2-5•2
8+12-10
20-10
10
To solve these questions use PEMDAS
First you do the Parentheses
Then solve Exponents
After that Multiple and divide left to right
Lastly Add and subtract left to right
One ruler is 12 inches and 12 inchs= 1 foot so 5 rulers equal 5 feet
Answer:
<em>8.880,8.808,8.018,8.008</em>