Solve each problem. show your work
1. amy drove to her mother's house, which is 204 miles away. if it took her 3 hours what was her average speed?
2. four gallons of gasoline cost $16.80. what is the price per gallon

3.a t-shirt launcher can launch 5 shirts in 20 minutes. what is the rate in shirts per hours

4. ashley needs to ride her bike to her friends house 96 miles away. she is riding at an average rate of 15 miles per hours. she has 6 hours to get there. will she make it?

5. which is the better buy? 6 shirts for $25.50 4 shirts for $18.00 5 shirts for $21