5. an 80 kg snowboarder is riding a half-pipe that is 15 m deep. if she begins
at rest, how fast will she be traveling if there is no friction when she is at the
bottom of the pipe?

Ineed with number 17 i don’t get it at alll

Marlow is comparing the prices of two trucks rental compaines company a charges $3 per hour and an addtional $75 as serivce charges company b charges $2 per hour and an additional $85 as serivce charges

Empty box + box + empty box fill in the box is equal to 30 how