Write 21 as a product of prime numbers

Camille uses 7.9 pints of blue paint and white paint to paint her bedroom walls. 1/4 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?

If 14 g of a radioactive substance are present initially and 3 years later only 7 g remain, how much of the substance will be present after 8 yr?

If f (x) = 4 - x2 and g (x) = 6x, which expression is equivalent to (g - f) (3) ? a: 6 - 3 - (4 3) 2 b: 6 - 3 - (4 - 32) c: 6 (3) - 4 32 d:6 (3) - 4 - 32

how many ounces of pure water must be added to 50 ounces of a 15% saline solution to make a saline solution that is 10% salt

The present temperature is 5°C. The weather forecaster expects the temperature to fall 8 degrees during the night. How cold will it get? A. - 3°C B. 3°C C. - 13°C D. 13°C

16. Unemployment is the ratio of A. unemployed workers to employed workers B. unemployed workers to total workers C. workers to total population D. workers to nonworkers

Lia has a dog and a cat. Together, the pets weigh 24 pounds. The dog weighs 3 times as much as the cat. How much does each pet weigh?

Square root of 200 is between which two whole numbers

Kimela's little sister likes to swing the playground. Yesterday, Kimela pulled the swing back and let it go. The swing traveled a distance of 9 feet before heading back the other way. Each swing afterward was only 70% as long as the previous one.

A bracelet that regularly sells for $44 is on sale for 25% off. Find the sale price of the bracelet?