How many combinations of 6 students can a teacher choose from 30 students

Suppose 30% of the beads in a very large bag are red. how many beads would you expect to draw from the bag until you got a red one?

Joshua received 350 shares of stock as a birthday gift from his aunt. The price of each share was $3.53. How much money did Joshua's aunt spend on the gift?

There are 892 students in a school. After one year they lost 194 students and by the 3rd year they lost 75 more students but got 64 more students. How many students does the school have now

A Scuba diver swam 96 feet beneath the surface of the lake. He then climbs up 49 feet. What is his depth now?

On top of a hill, a rocket is launched from a distance 80 feet above a lake. The rocket will fall into the lake after its engine burns out.

A taxi cab company charges a flat amount of $5.00 plus a rate of $3.00 per mile traveled. Part A: If the total cost of the fare was $41.

The probability that a fair coin tossed 10 tines will land heads up on all ten tosses is 1 out of

The product of two positive numbers is 1,800. One number is twice the other number. The equation to determine the two numbers, with x representing the value of the lesser number, is x (2x) = 1,800. What is the value of the lesser number? 24 30 48 60

Two pony express riders rode equal parts of a 286 mile trip. each rider rode the same number of miles. they changed horses every 13 miles. how many horses did each rider use?

The number of bricks on the bottom row was 21, and each row above it had 2 fewer bricks. If there were 11 rows in the stack of bricks, how many bricks were there altogether?