Answer: $220
Explanation:
Paying is spending, so it is "-"
Earning is gaining money, so it is "+"
Considering this, -55 + (+275)
|-55|-|275|
55-275, we rearrange that expression to have a subtraction expression that is going to have a positive difference since profit cannot be expressed in negative numbers.
So,
275-55=220, and all you have to do is add the "$" and you're good to go!