a new type of pump can drain a certain pool in 6 hours. an older pump can drain the pool in 9 hours. how long will it take both pumps working together to drain the pool?

Sebastian and his two brothers read and equal amount each week very for a combined total of 135 minutes each week, very the same amount of time each week how many minutes will each boy have to have to read in 6 weeks?

There are 5 envelopes in a box. The envelopes contain a penny, a nickel, a dime, a quarter, and a half-dollar. A person selects an envelope. Find the expected value of the draw

A count went up from 450 to 600. What was the approximate percent increase?

In a bag of candy for every 3 chocolate pieces there are 7 sugar pieces. What is the ratio of chocolate pieces to sugar pieces?

What is the name of the quadrilateral that always has 4 right angles and 4 sides of equal length?

Factor 6x^2+x-2 / 3x^2+14x+8

Equivalent expi Which expressions are equivalent to 4 (4a + 5) ? Choose 3 answers:

Sam bought brushes for $8, a palette for $5, and oil paints for $15. He paid $29.82 in all. What sale-tax rate did Sam pay?

3y-4x=20 a linear function

Graph x^2 + 8x+4y+8=0