2,070,170,3810
That's the answer
Because the original statement states that Paula withdrew $20 MORE, then me can write a statement as instructed, with "d" meaning dollars:
d + $20
Hope that helps:)
Given
and
(say).
Then,

From the above 3 equations,

From the equations, we get

Since
, the negative value is rejected.

Answer:
x^9-1,0^3
and you can use Microsoft maths solver to help you it help solve and explain how to do the math