Answer:
243 ft³
Step-by-step explanation:
V = Bh
A = 9 x 9 = 81
81 x 9 = 729
729 / 3 = 243
When you see in a math formula, it means to divide by 3.
For example, when you are trying to find the volume of a pyramid or cone you will see in the formula.
Let me know if this helps!
(x,y) -> (-x,-y)
the coordinates are switched from the (x,y) you have to (-x,-y)
1/2 (135 - 55) = 1/2 * 80 = 40
Answer B