Answer:
135 ft^2.
Step-by-step explanation:
The total surface area
= 2 * area of the triangular sides + area of the 3 rectangular sides
= 2 * 1/2 * 2.5*6 + 8*6 + 8*6.5 + 8*2.5
= 135 ft^2.
Answer is B
-0.6- (-0.4)= -0.6+0.4= -0.2
In step 1 , it's commutative property of addition
hope it helps
2. 89
3. 568
4. 987
5. 854
6. 797
all u do is add