Rafi had a board that was 15 1/2 feet long. he cut three pieces off the board that are each 3 7/8 feet long. how much of the board is left.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

What is 1/3x5 on anuber line what does it look like on a number line

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document