V = 4/3 (pi r times ^3) = formula for this knowing that you than
Combine volumes up (1ft times 3.14) + (2ft times 3.14) + (3ft times 3.14)
18.8 >. rounded to the nearest cubic foot of 19
It is a simple multiplication problem. If you work for 39 hours, and you get paid $8.17 for every hour you work, just multiply 8.17 by 39 to get the gross pay.
8.17 x 39 = 318.63
The gross pay is $318.6.
Hope this helps =)