She has -80 because 4 withdrawalsof 50 is 200 subtract the that from 120 its -80
So it’s $15 per month so that is what you are gonna multiply by x. You start out with $75 so that’s the initial fee. 15x + 75 is your expression.
1/3=2/6
-1/6= -1/6
then I guessing you add them?
2/6+-1/6=1/6
2 tens = 20
13 ones = 13
20 + 13 = 33
33 is your answer
hope this helps