Estimate a \( 10 \% \) tip on a bill of \( \$ 169.71 \) by first rounding the bill amount to the nearest ten dollars. Estimated típ: \( \$ \square \)

To estimate a \(10\%\) tip, you first round the bill of \( \$169.71 \) to the nearest ten dollars. In this case, \(169.71\) rounds up to \(170\). Now, calculating \(10\%\) of \(170\) is easy: simply move the decimal point one place to the left, which gives you \(17\). Thus, your estimated tip is \( \$17 \). Estimated tip: \( \$17 \)