We are given
Karl walked 5 1/4 miles on the first day
2 1/2 miles on the second day
so, we can find total walking distance
[tex]=5\frac{1}{4} +2\frac{1}{2}[/tex]
[tex]=\frac{21}{4} +\frac{5}{2}[/tex]
[tex]=\frac{21}{4}+\frac{10}{4}[/tex]
[tex]D=\frac{31}{4}[/tex]
we are given
total donated money is
[tex]M=93[/tex]
now, we can find money pay for each mile
Money pay for each mile is
[tex]=\frac{M}{D}[/tex]
now, we can plug values
[tex]=\frac{93}{\frac{31}{4}}[/tex]
[tex]=12[/tex]
So, his parent paid $12 for each mile............Answer
