A box contains 8 red and 5 green marbles. Two marbles are randomly selected from the box, without replacement, and without regard to order. What is the expected number of red marbles?

A triangle has an area of 56 square units it's height is 14 units

19 - [1/4+1/5]=the answer

What is 27/125 equal to

A dance studio wants to use square mirror tiles to cover two walls in their studio that measure 2 feet by 2 feet. Each wall measures 9 feet tall by 22 feet long.

Which sentence uses a verb that agrees with its subject? a. Is the boys coming over later to play basketball? b. Has he ever been there before? c. Were she happy to see you? d. Does the Miller sisters sing, too?

A secret code must consist of three capital letters followed by a digit. Letters cannot be repeated. How many secret codes are possible?

On an airplane, there are two seats on the left side in each row and three seats on the right side. There are 150 seats altogether. a. How many seats are on the left side of the plane? b. How many seats are on the right side?

Gavin agrees to buy a 6 month package deal of monthly gym passes, and in turn receives a 15% discount. Write an algebraic expression to represent the total cost of the monthly passes with the discount, if X represents the cost of each monthly pass.

What percent of 40 is 34?

Find the product of 0.032 and - 1.9