According to a survey, 50.5% of homes have grass in their backyards. What is the probability that four randomly selected homes have grass in their backyards. 93.5%
49.5%
12.6%
6.5%
50.5%

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