What is the name of the fraction of 7/8

The numerator in a fraction represents the number of pieces selected. If the numerator is larger than the denominator, the number is larger than one

The denominator in a fraction represents the total number of equal size pieces that make up a whole

7/8 is called a proper fraction. 

PART A
5=30
6=36
8=48
66=369
for every hour he earns $6
PART B
for every hour he earns $7
1:7
5:35
6:42
8:56
PART C
Collins earns $5 more for yard work in 5 hours than in dog walking