We can compare by converting Johnny's reading time into the same unit of Jacky's, hours.
There are 60 minutes in an hour, so use this:

15 < 20, so Johnny read faster. This is 5 pages faster per hour than Jacky.
It is C a pyramid! They ask for shape but no measurements
Y=mx+c
1/-3=m3/8+c
m= 11/4