Water is leaking from a tank. After t minutes the volume of the water in the tank is 16 (200-9t) milliliters. What is the volume of water left in the tank after 18 minutes?

How many ways can a girl choose a two piece outfit from 5 blouses and 7 skirts?

The polynomial expressions 3y^3+39y^2+90y and y^2-7y-30 share a common binomial factor. What binomial factor do they share?

Tracy goes and purchases school supplies she buys pens pencils folders and markers for $30.90, if the sales tax is 6% what is the amount of tax paid, what is her total bill?

44/12 in simplest form

Solve - 2 = 4r + s for s

Aiden measures a book with paper strips. It is actually 10 paper strips long, but he gets an answer of 8. What is his mistake?

Mia's new puppy weighed 3 1/5 pounds at 4 weeks old. At 16 weeks old, the puppy weighed 9 1/7 pounds. By what factor did the puppy's weight increase during that period? Write your answer as a mixed number.

What are system of inequalitues

Your favorite restaurant offers a total of 14 desserts, of which 8 have ice cream as a main ingredient and 12 have fruit as a main ingredient. Assuming that all of them have either ice cream or fruit or both as a main ingredient, how many have both

Calculate the total with 6% sales tax and 18% tip for a dinner that costs $27.58