Emma will roll two number cubes, labeled 1 through 6. She will record the sum of the two numbers after each roll. She will roll the 2 cubes 540 times. How many times should Emma expect the sum to equal 5?

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?