Answer:
21/4 x 51/2 - k use the app Photomate if wrong
6 mins goes into 60 mins ten times.
so, first do

now 50000 crauons are being made in 1 hour but your are trying to find how many crayons are being made in 3 hours
so, you multiply

150000 is how many crayons are made in 3 hours.
The translation that flips sides
V = 4/3(pi)(r^3)
V = 4/3(pi)(4.2^3)
V = 310 cm^3
Good luck!