Adam is 20 years younger than Brian. In two years Brian will be twice as old as Adam. How old are they now?

A pool service charges $40 per year for chemicals plus $70 per month for pool care. A second pool service's charges are shown in the table below. Number of Months (x) : 2, 3, 6, 8. Total Charge (y) : $190, $255, $450, $580.

Caleb has d dollars in his piggy bank. Write an expression for the amount in the piggy bank if Caleb adds 9 dollars.

A bus token cost 1.75. You spend 15.75 on tokens. How many tokens did u purchase. If I purchase 10 tokens you get 2 free tokens. Reduce price of each token. You receive free tokens if you purchase 20 tokens. The reduced price for each token is $1.40.

Simplest for of the ratio 1 to 4

You have 7.60 to buy cantaloupes for a fruit salad recipe. Cantaloupes cost 1.90 each. Write and solve an inequality that represents the number of avocado you can buy

When adding two rational numbers, if a pair of addends has opposite signs, then the sum will have the sign of the addenda with the

If dy/dx = 2xy^2, what is d^2y/dx^2?

Susie mows a rectangular yard with an area of 72 square meters. the yard is 6 meters wide. what is the perimeter of the yards susie mows?

In order to join a yoga club there is a $100 annual fee and a five dollar fee for each class you attend write an equation in slope intercept form that models this situation

If A ⊂ B, then A ∩ B = A ∪ B.