In july in seattle, the grass grows 1/2 inch a day on a sunny day and 1/4 inch a day on a cloudy day. in seattle, in july, 75% of the days are sunny and 25% of the days are cloudy. a. find the expected value of grass growth for the day b. find the expected value of grass growth for the month of july ( 31 days ) -- round both to 2 decimal placees