he has driven 15 miles so far which is three-fifths of the way home what is the total length of his drive

**The total length of his drive is 25 miles

Step-by-step explanation:

15 = 3/5

therefore 5 miles is 1/5 of the way home

15+5+5=25

a 10 percent increase

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.