Total earning in the summer = $1440 Step-by-step explanation: Earning per hour for Samuel = $7.50 No. of hours worked in a day = 6 Earning for a day = Earning per hour for Samuel *No. of hours worked in a day Earning for a day = $7.50 *6 = $45 ___________________________________________________ No of days worked in a week by Samuel = 4 Earning for week = Earning for a day *No of days worked in a week by Samuel Earning for week = $45*4 = $180 _____________________________________________________ No. of weeks worked in summer = 8 Total earning in the summer = Earning for week *No. of weeks worked in summer Total earning in the summer = $180*8 = $1440 (Answer)