crying and launching a rocket from the ground for a competition being held at her school her rocket reaches a maximum height of 200 ft and it stays in the air for 20 seconds which graph matches the given scenario​

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?