There are 5 red marbles and 12 silver marbles in a bag. You randomly choose one of the marbles. What is the probability of choosing a red marble? Write your answer as a fraction in simplest form.

3. Mrs. Noah's bill, before tax, is $50. The sales tax rate is 3%. Mrs. Noah decides to leave a 2% tip for the gate keeper based on the pre-tax amount. How much will the total bill be, including tax and tip?

Rory built a sand castle that measured 73 inches by 47 inches, and dug a moat around it. afterward he decided to change the castle size by 45 inches by 86 inches. how much longer will the new moat be than the old one?

How to solve 2v 14=20

12x^2 + 3x = 0 Using binomials and factoring

Mr. Willis is building a new dock at his lake house that will be 35 feet long. If the blueprints show the dock as 16 inches long, what scale was used to create the blueprint?

A bicyclist travels at a constant speed of 18 mi/h. How long does it take the bicyclist to travel 90 miles?

Solve the equation by completing the square. round to the nearest hundredth if necessary. x^2-6x=20

What is the complementary angle of an angle that measures 30 degrees?

Here is a simple question: Why is 2 + (-3) equal to - 1?

What does 8:8 equal?