Answer:
He runs about 30 miles (29.75)
Step-by-step explanation:
4 miles per day for 7 days is 28 miles
(4+4+4+4+4+4+4)
add up the additional quarter mile per day for 7 days which is
(.25+.25+.25+.25= 1 mile, +.25 +.25 +.25= .75 mile)
add these miles to the 28
(1+28+.75)
Final answer=29.75