10 units is 100 because 1 unit equals 10 ones. 100 ones is 100 because one one is one. I don't know if this answers your question I didn't really get what you were asking.
Think of it like this, what two numbers when multiplied together, you get 27, and when they add together, you get 12? The answer is 9 and 3,
Your answer here would be (r+9)(r+3) when factored.
Answer:
the elapsed time would be 19 hours and 5 minutes
V=hpir²
h=8
d=2r
d/2=r
5/2=2.5=r
V=8pi2.5²
V=8pi6.25
V=50pi
aprox pi=3.14
V=50 times 3.14
V=157 in³
157 cubic inches
