pleaae help and explanation

Amy's Grill sells hamburgers. Assume that the market for hamburgers is a perfectly competitive market. The restaurant's costs are listed in the table below. Use this information to answer the following questions. Number of Total Cost ATC AVC Marginal Burgers Cost $80 20 $86 $8.60 $1.19 50.60 40 $96 $4.80 $0.80 $1.00 60 $112 $3.73 $1.07 $1.60 80 $136 $351 $1 40 $2.40 100 $170 $3.40 $1.80 $3.40 120 $216 $3.60 $2.27 $4.60 140 $276 $3.94 $2.80 $6.00 160 $352 $4.40 $3.40 $7.60 1. Based on the information in the table, what should Amy's do if the market price for a burger is $6 00? Explain 2. What should the restaurant do if the market price for a burger is $1.60? Explain. 3. What will the price of burgers be, in the long run, in this market? Explain 4. What are barriers to entry? List and explain the five types of barriers to entry discussed in class