The volume of the cylinder is 6283.18530717959
She has 24 friends.
<u><em>Explanation</em></u>
Suppose, the number of friends is 
She gave 3 pieces of gum each of her friends. So, the <u>total number of gums given to
numbers of friends</u> will be: 
She had total 77 pieces of gums and after giving to her friends, she has only 5 remaining. So, the equation will be......

So, she has total 24 friends.
Answer:
Yes Box:
x+7=18
2x+14=36
(2*x)+(2*7)=36
No Box:
x+14=36
2x+7=36
2(x+7)=72
Not enough info box:
none
hope this helps, what grade is this problem
Any linear equation can be written as
y = mx+b
where m is the slope and b is the y intercept
m = 1/2 in this case. It represents the idea that the snow fell at a rate of 1/2 inch per hour. In other words, the snow level went up 1/2 an inch each time an hour passed by.
b = 8 is the y intercept. It's the starting amount of snow. We start off with 8 inches of snow already.
The info "snow fell for 9 hours" doesn't appear to be relevant here.