2. A family eats at a restaurant. The bill is \( \$ 42 \). The family leaves a tip and spends \( \$ 49.77 \). a. How was the tip in dollars? b. How much was the tip as a percentage of the bill?

**Step 1: Find the Tip in Dollars** The total amount spent is \(\$49.77\) and the bill is \(\$42\). The tip in dollars is the difference between these two amounts. Thus, we have \[ \text{Tip} = 49.77 - 42 = 7.77 \] **Step 2: Calculate the Tip as a Percentage of the Bill** The tip percentage is calculated by dividing the tip by the bill and then multiplying by \(100\%\): \[ \text{Tip Percentage} = \left(\frac{7.77}{42}\right) \times 100\% \] Let's compute the fraction: \[ \frac{7.77}{42} \approx 0.185 \] Multiplying by \(100\%\) gives: \[ 0.185 \times 100\% \approx 18.5\% \] **Final Answers:** a. The tip in dollars is \(\$7.77\). b. The tip as a percentage of the bill is approximately \(18.5\%\).