2/12 of a box of pencils are red.4/12 are green. 5/12 are blue. the rest are yellow. what fraction is yellow?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]