Michael and Alex left the store on their bikes to go home. Michael rode north and Alex rode south 3 miles per hour faster than Michael. After 15 minutes they were 6.75 miles apart. How fast was each person going?

Which rational number could be graphed between -4 and -5

Question 5 spring semester final exam math evaluate

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?