Question

If your weekly allowance of $20 increases by 10%, then decreases by 10%, how much will you earn each week?

Answer 1

1)  The amount M 1 IS $20 increases by 10% = 10 % *(20) + 20 = 22

2) The amount M1 decreases by 10% = 22- (10%*22) = $ 19,8 IS THE AMOUNT that i earn each week

Answer 2

Correct but I would round the 19.08.