I think that x is on they y axis and what connects between that is 2,-3
Answer:

Step-by-step explanation:
The formula of a volume of a square pyramid:

a - base edge
h - height of a pyramid
We have H = 8in.
Substitute and solve for a:

Answer:
0.105 or 21/200
Step-by-step explanation:
2/8= 0.375 cups
0.375x0.72= 0.27 cups or 27/100
0.375-0.27= 0.105
Answer:
243
Step-by-step explanation:
3x3=9
9x3=27
27x3=81
81x3=243