Assignment:
Last year you could get a hamburger, fries, and a cola at Zack's Drive In for $2.80. Since the price of a hamburger has increased 20%, the price of fries has increased 50%, and the price of a cola has increased 60%, the same meal now costs $4.01. If the price of a cola is now 20 cents more than that of a hamburger, what was the price of each item last year? This exercise must be solved using a system of equations.
Provide complete and step by step solution for the question and show calculations and use formulas.