Can you provide an in-depth solution for: Five shirts are bought. Of the 5 shirts, there are 3 shirts that cost $15 each. The remaining shirts are $20 each. What is the cost, in dollars, of all 5 shirts?Hey there, could you help me solve this math problem: Five shirts are bought. Of the 5 shirts, there are 3 shirts that cost $15 each. The remaining shirts are $20 each. What is the cost, in dollars, of all 5 shirts?