Question

you deposited $100 into your bank account. the next day, you needed $ 20 to go mini golfing. represent this situation with a set of integers.
1.-$20
2.-$80
3. $20
4.$100
5. -$100

Answer 1

1. because you need 20 dollars to go mini golfing 

Answer 2

1.  You took out $20 so you subtracted it from your account.