Tyler's brother works in a shoe store. He earns a fixed salary of $8,000 per month plus a 2.5% commission on the sales he makes. 1. Last week Tyler's brother sold $1,800.00 worth of shoes. How much was his commission?

2.Assuming that Tyler's brother sold &1,800.00 worth of shoes each week in the past month. What would be the total amount of money he earned last month including his salary?