One person can do a certain job in fifteen minutes, and another person can do the same job in thirty minutes. how many minutes will it take them to do the job together?

Is every rectangle is a parallelogram? true false

(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder

Which function has the domain x> -11?