this summer was over 80 degrees for 25% if the days in august . describe the like hood of the temperature being over 80

Could someone with number 1 and 2

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?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.