Which expression entered into a graphing calculator will return the probability that 10 or fewer heads come up when flipping a coin 35 times? A. binomcdf (35, 10, 0.5)
B. binomcdf (10, 0.5, 35)
C. binomcdf (35, 0.5, 10)
D. binomcdf (10, 35, 0.5)

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?