Jackson wants to improve his endurance running. His goal is to start by running 3 miles a day the first week, then spend the next four weeks running one additional mile/day each week. How many miles is Jackson running each day at the end of this exercise program?
First, figure out how many additional miles Jackson is running after four weeks: 4 weeks * 1 extra mile/week = <<4*1=4>>4 extra miles
Then add the 4 extra miles to the 3 miles he initially ran: 4 miles + 3 miles = <<4+3=7>>7 miles
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