A student tries out for the track team and runs a lap in 45 seconds. The coach tells her she will have to cut her time by
50% to make the team. How fast must she run a lap to make the team?
9 seconds
22 seconds
C)
25 seconds
D
445

Can someone pls ! pls answer all. no explanation needed..

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

John checked his watch and said that it is thursday, 7 am. what will the day and time be 2006 hours plzzz i will give you 100 points