The r means Ray in your question
Answer:
904.8
Step-by-step explanation:
equation V=4/3πr3
8 would be the constant but in this situation there is a variable next to it so I’m not sure if it would be considered a constant
(x+13) + x= 47
2x+13=47
-13. -13
2x=34
x=17
The length of the longer piece is 17 in
