Answer:
The right answer is: Option C: x+5
Explanation:
Let m1 be the miles Lukas drove on Saturday and Let m2 be the miles he drove on Sunday

The difference can be found out by subtracting m2 from m1
minus sign will be distributed into the bracket and alike terms will be added or subtracted according to sign.

The difference of miles driven is: x+5
Hence,
The right answer is: Option C: x+5