Oliver charges $15 an hour for guitar lessons. He pays a monthly rent of $50 for his guitar. How many hours must he work to have a profit of $250?

3x+y=5 3y-z=2 X+z=5 Solve for x, y, z Solve by Gaussian elimination

A 6 sided number cube is rolled five times, X is the number of times an even number is rolled. Which statement is true about this situation? The variable X does not have a binomial distribution because there are more than two possible outcomes.

10/6=15/x solve for x

If a-b = 4 and ab = 60, what is the value of a + b?

I paid $40 for a kennel plus I bought 12 cans of dog food, all the same brand. I spent a total of $53.20. How much did each can cost?

The cost for 7 dance lessons is $82. the cost for 11 is $122. write a linear equations to find the total cost C for L dance lessons. How much for 4 lessons?

What is 9.09 repeating as a fraction?

The number of gallons of water in a tank that already has 300 gallons in it after being filled at 35 gallons per minute for m minutes

The Tennis Teams of Atlanta need to older tennis balla for the upcoming tournament. They will need 2,367 tennis balls. If each can hold 5 tennis balls, how Many will they purchase

42 is subtracted from 42% of a number. The result is 42. What is the number?