11. Gretchen finished her first lap in the 200m freestyle event in 28.78 seconds. She completed the second lap in 31.13 seconds. By how much did her time increase in the second lap?

What is the value of x in the following equation. -x ^3/2 = -27

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?

If i have 20$ and i gave 5$ away how much i got