Sammy drives at a rate of 40 miles per hour for 3 hours. How many miles does she travel in 3 hours? Identify the independent and dependent variables and explain how they relate to one another.

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m