Daniel left a $9 tip for the waiter at a restaurant. if the tip was 15 percent of the bill, how much was the bill?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?