Answer:
A. is ur answer
Step-by-step explanation:
the rate of change for Jack is 7 points increased for each additional hour studied and the rate of change for Howie is 6 points increased per hour so 7-6 is equal to 1.
hope this helps <3
164
x=5.4
by comparing A and B.....u will have
7.2=4
x =3
cross multipleing
7.2*3/4=5.4
just an option
find the dirivitev