The correct answer would be Victoria's method is linear because the number of minutes increased by an equal number every month. Every month Victoria read for 15 minutes more, than she did the previous month, but Zach read 2 times more minutes, than he did the month before.
I'm pretty sure the above fractions are equivalent because if you reduce 5s/15t then it equals s/3t.
Answer:
a: -1/7
b: 1/2
c: -1
d: none
Step-by-step explanation: