Flower Growing

Microeconomics help!!?

Peter gives guitar lessons for $20 per hour. He also grows flowers, which he arranges and sells at the Boulder farmer’s market. One day he spends 5 hours planting $50 worth of Seeds in his garden. Once the seeds have grown into flowers, he can sell them for $150 at the farmer’s market.

You don’t state any where that Peter has to trade guitar lesson with his flower work. But I guess he has to, so the answer is
1) his account profit 150-50=$100.
2) his implicit costs=20 x 5=$100
His total cost will be 100+50=$150
his economic profit=normal profit =150-150=0

Gardening Tips : Growing & Selling Cut Flowers