The radius of one sphere is equal to the diameter of another sphere. What is the ratio of their volumes?

A spherical ball 10 inches in diameter is filled with air. Find the volume of the ball and its surface area.

two cars, heading toward each other are 250 miles apart. if one car travels 45 mph and the other travels 10 mph[..]

the sum of two consecutive integers is 99. What is the value of the smaller integer?

jose has a board that is 5 feet long. he plans to use itto make 4 shelves whose lengths are to be a series of[..]

the sum of the least and gratest 3 consecutve integers is 60. What are the values of the 3 integers?

chris drove for 3 hours ata a rate of 50 miles per hour and for 2 hours at 60 miles per hour. What was his average[..]

monica has 50 stamps, some worth 15 cents and some worth 20 cents. If their value is $9.50, how many of each kind[..]

maria received change woth $13 dollars. Shereceived 10 more dimes than nickels and 22 more quarters than dimes. How[..]

60 feet per seconf equals how many kilometers per hour