A bag contains 5 gold marbles, 7 silver marbles and 23 black marbles. The rules of the game are as follows: you randomly select 1 marble from the bag. If it is gold you win $6, if it is silver you win $2. If it costs $1 to play, what is your expected profit or loss if you play this game?

Acylinder has volume 45π and radius 3. what is it’s height?

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.