How many gallons of a 70% antifreeze solution must be mixed with 90 gallons of 30% antifreeze to get a mixture that is 60% antifreeze? Use the six-step method.

Allie answered 72% of the questions on her math test correctly. if she answered 18 questions correctly, how many questions were on the test?

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.