Estinnate a \( 5 \% \) tip on a bill of \( \$ 73.62 \) by first rounding the bill amount to the nearest ten dollars.

To estimate a **5% tip** on a bill of **\$73.62** by first rounding the bill amount to the nearest ten dollars, follow these steps: 1. **Round the Bill to the Nearest Ten Dollars:** - The bill is **\$73.62**. - The nearest ten dollars to \$73.62 is **\$70** (since 73.62 is closer to 70 than to 80). 2. **Calculate 5% of the Rounded Amount:** - 5% of **\$70** is calculated as: \[ 0.05 \times 70 = 3.50 \] - So, **5% of \$70 is \$3.50**. 3. **Estimated Tip:** - Based on the rounding method, an estimated **5% tip** is **\$3.50**. **Summary:** - **Original Bill:** \$73.62 - **Rounded to Nearest Ten:** \$70 - **Estimated 5% Tip:** \$3.50 This method provides a quick and easy way to estimate the tip without performing precise calculations on the exact bill amount.