Tyler's brother works in a shoe store. Tyler's brother earns a commission. He makes 2.5% of the amount he sells. Last week, he sold $900 worth of shoes. How much was his commission?
The store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup?
Tyler's brother earns $12 per hour. The store offers him a raise-a 5% increase per hour. After the raise, how much will Tyler's brother make per hour?