A father is 4 times as old as his son. In 20 years the father will be twice as old as his

son. Find their present ages

What is the difference between gross annual salary and net annual salary?

Express 152 as a product of prime factors in index form

The tree in your friend's yard casts a shadow that is 27 feet long. Your friend is 5 feet tall and casts a shadow that is 4.5 feet long. What is the height of the tree?

Solve for x. √10-13x=x-4 x=-2 or x=-3 x = 2 or x = 3 no solution x=-6 or x = 1

There are 46 legs in a zoo exhibit. The number of 2 legged animals is 2 more then the number of 4 legged animals. How many of each is in the exhibit?

A scale model of an object is 7 inches tall. The actual object is 343 feet tall. What is the scale factor of the model?

How to right 100,203 in two other forms

Sam wants to leave an 18% tip for his dinner. The bill is for $23.50. Which equation could be used to find the total amount that Sam should pay? 23.5 = 0.18x x = (0.18) (23.5) x = (23.5) (1.18) 1.18 = 23.5x

15. A new section of 12-inch diameter pipe is to be disinfected before it is put into service. If the length of the pipeline is 1200 feet, how many gallons of water will be needed to fill it?

Give a word problem for multiplying or dividing negative numbers