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

every ninth person in line at a movie gets free popcorn. every sixth person gets free apple juice. Shane says that the thirty sixth customer gets both. is she right

112m find the dimensions of the rectangle

Kimberly's currently has a balance of - 20.59 in her checking account. Her bank requires her to maintain a minimum balance $40. How much does Kimberly need to deposit into her checking account to reach the minimum balance?

Rational or irrational (-6.25)

How many categories are shown in the rows? A group of 14 and 15-year-olds were polled on their favorite season. The results are shown in the frequency table.

For what values of x is x2-36=5x true? answer is b on edge

In circle T, A. 3 B. 4 C. 6 D. 7

What is the value of x when the Richter scale rating is 3.8?

There are six marbles in a bag, three are green and Three are yellow. If you draw marble, replace it, and then draw another what is the probability of choosing two yellow marbles

Simplify the following questions: 7f-5 (4f+9)