Could y’all help me please please please

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?

The volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?