Eugene installs sliding glass doors, He can install a door in 9 hours. If his partner Carol is helping it only takes 4.95 hours. How long does it take Carol to install the door alone?

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

Can someone me with my math problem pls my teacher is on my back about this