Question

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Answer 1

The difference in money amounts over 10 weeks is 100 - 20 = 80 dollars

So you gain $80 in 10 weeks

Divide the two to get 80/10 = 8

So you gain $8 a week, which is represented by the slope of 8

Answer 2

you are 100% correct

Answer 3

slope is 8, which translates to $8 is saved each week