The cost of 625 bolts is $100. What is the cost of 10 bolts?

The ratio of the lengths of the radii of two spheres is 5 : 8. What is the ratio of the surface area of the smaller sphere to the surface area of the larger sphere?

Corey has $120 in savings and is planning to add $40 each week. Dana has $450 in savings and is planning to add $30 each week. Their plan is to wait until their savings are equal and then load up their old Volkswagen bus and take a road trip.

Nathan wants you to solve this puzzle i em thinting of a number. if you divide my number by 3 and add - 3 you will get 4

If a person bikes 2. r miles in 10 minutes, how far can he bike in 1.5 hours

Find the average of the following numbers: * What is the average of the first n positive even numbers?

5=2/3x what does x equal

Ryan earns $5 for each small dog he walks and $8 for each large dog he walks. Today he walked 8 dogs and made a total of $55. How many small dogs did Ryan walk?

Paula's age is 4 times Mary's present age. In 6 years time, the sum of their ages will be 57 years. Find their present ages.

544,509,474,439, ... pattern

3x (x-1) ^1/2 + 2 (x-1) ^3/2 = 0 solve