How many groups of 3 students can be chosen from a class of 15?

A. 45

B. 455

C. 2,730

D. 3,375

A circle has a circumference of 100cm. what is the radius of the circle?

Annita, Gary, and Tara all run races. Annita has 7 less than 4 times the number of race medals as Tara. Gary has 13 more than 2 times the number of race medals as Tara.

Kate is going to the fair with her friends it will cost $5 to get in and an additional $2 per ride. Create equation to represent the cost for the whole group then use distributive property to expand the expression and solve the problem.

A bag contains 40 marbles: 20 blue and 20 green. you are randomly drawing marbles out of the bag one at a time, replacing them after each draw. you have just picked 10 blue marbles in a row. what is the probability of picking a blue marble again?

Michael walked 30 meters in 20 seconds how many meters does he walk per second

2[s+3 (s-31) ]=18 how would i solve this

Paula ran 24 ft with the football and then passed it 15 feet to newt. newt ran 70 yards for a touchdown. what was the total number of feet the ball traveled?

The amount of soda a dispensing machine pours into a 12 ounce can of soda follows a normal distribution with a mean of 12.06 ounces and a standard deviation of 0.04 ounce.

A eagle was flying at the height of 10 m. He dove down 5 m to catch a mouse. What is the sum of how much the eagle flew?

Banks will pay you interest on your money based on the interest rate. True or false?