Answer: y=12
Step-by-step explanation:
10y+10=130
-10 -10
10y=120
—- ——
10. 10
Y=12
Answer: 110.6
Step-by-step explanation: 220 - 109.4 = 110.6
The answer is a 40% discount because it costs $24 less than the original price and 24 divided by 60 is .4 or 40%!
Remember, the volume formula of a sphere is

.
Set that equation equal to whatever volume they give you and solve for r.

=

Now solve for r! I know you can do this. If you need help, just comment.