What is the Expected value if there is a probability of .70 that you Win $14,000,
and a probability of .30 that you Lose $ 9,000

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

To decrease an amount by 16% what single multiplier would you use