25*4+15
4/7-2/6
9/50+6/55
x varies inversely as y^3
2 2/5+2/3
9/50 + 6/55 = ?
50 55
2 2/4+2/3
If height of two cones are in the ratio, 1 is to 3 and their diameters are in the ratio, 3 to 5 find the ratio of their volumes.
33% x 1,340,000
15/40+3/20
