There are 20 cars competing in a race. In how many ways can the cars be awarded first, second, and third place?

826,880
6,840
1140
51,680

Please help me!

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

The room above is shaped like a rectangle anthe room above is shaped like a rectangle and has a perimeter of 34 feet. if the room is 11 feet long, how wide is it?

Use the coordinates of the labeled point to find a point-slope equation of the line (3 -5)