Answer:
V=35
Step-by-step explanation:

Start by multiplying by 7 on both sides:
V=35
Answer:
16
Step-by-step explanation:
1/2 (perpendicular height × base)
1/2(4×8)
2×8
=16
U need a calculator for that lol
Answer:
3375
Step-by-step explanation:
The formula for volume is
volume = length x height x width
or in simpler terms (only works for cubes i think)
v = a^3
so we know that the side is 15cm long, so we substitute that back into the equation, so,
3375 = 15 x 15 x 15
or
3375 = 15^3
I hope that this helps you out :)