need help with this one

Cost, Revenue, Profit You decide to begin selling bags of gold fish at the local park and swap. Your cost for each bag of gold fish is $2.99 plus you have to pay a fixed weekly fee of $180 for the booth. Your plan is to sell each bag of gold fish for $4.35. 1. Write an expression to represent your total costs for the week if you sell n bags of gold fish. Total Costs: 2. Write an expression to represent the revenue from the sale of n bags of gold fish during the week. Revenue: 3. Write an expression that represents the profit for selling n bags of gold fish in a given week! Profit How many bags of gold fish must you sell in order to make a positive profit? In order to make a positive profit, you would have to sell | Select an answer w bags of gold fish