How many gallons of a 90% antifreeze solution must be mixed with 70 gallons of 30% antifreeze to get a mixture that is 80% antifreeze

Determine the future value of a $25000 investment at an annual rate of 4.85% compounded quarterly for 6 years.

Four times the difference of a number and seven is 12

Two angles are vertical angles. One is labeled 2x. The other angle is labeled (x+30). Find the value of x.

In a certain algebra 2 class of 29 students, 22 of them play basketball and 12 of them play baseball. there are 9 students who play both sports. what is the probability that a student chosen randomly from the class plays basketball or baseball?

Rock can read 10 books in 30 minutes. how long does it take rock to read 15 books, if the speed is consistant.

If you combine the partial crates, how many additional full crates of oranges can be sold?

What expression represents six times a number plus 8 times a number

What is a reasonable estimate of - 3 4 5 + (-5.25) and the actual value?

a restaurant holds 150 diners. when you arrive and are finally seated, the resterant is 2/5 full how many diners are in the restaurant

How many times does 46 go into 351