13. You borrow $\$ 60$ to buy a bread making machine. You charge customers $\$ 1.50$ per loaf for your special bread. Write a rule to describe your profit as a function of the number, $n$, of loaves sold.
Answer
Step 7: Check the result: Plug in different values for \(n\) to calculate the corresponding profit
Step 1 ：Step 1: Understand the problem
Step 2 ：Step 2: Define variables: \(n\) represents the number of loaves sold and \(P\) represents the profit
Step 3 ：Step 3: Determine the cost: The cost is \$60
Step 4 ：Step 4: Determine the revenue: The revenue is \(1.50n\)
Step 5 ：Step 5: Calculate the profit: \(P = 1.50n - 60\)
Step 6 ：Step 6: Simplify the rule: \(P = 1.50n - 60\)
Step 7 ：Step 7: Check the result: Plug in different values for \(n\) to calculate the corresponding profit
