The answer is 91 ............
1/5th off = 20% off
80% = $140
1% = $1.75
100% = $175
Answer is $175
0.59 increase because it went up
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.
2x=18y
divide 2
x=9y
9y=x
divide by 9
y=1/9x
k=1/9
