Anthony ran 5.5 miles each day after school.
Let x represent the distance ran after school.
Since he ran 1.5 miles around his neighborhood before school, hence the distance ran each day is:
Distance ran each day = x + 1.5
Also he ran for four days a total of 28 miles, hence:
4(x + 1.5) = 28
4x + 6 = 28
4x = 22
x = 5.5
Hence he ran 5.5 miles each day after school.
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