Wilson makes high quality tennis balls. The company packages three tennis balls vertically (one on top of the other) into one cylindrical package, where all spheres lie perfectly tangent to the sides of the cylinder or to each other. If the diameter is 2.7 inches, what is: a) The combined volume of the tennis balls?

b) The volume of the cylinder container?

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling