Write the unit rate. Round to the nearest tenth if necessary 20. 150 pages in 3 hr . 21. 1,310 mi. in 5 days 22. \( \$ 240 \) for 15 piano lessons 23. \( \$ 98 \) for 5 books

Round the number by following steps: - step0: Round \(19.6\) to \(1\) decimal places using standard rounding method: \(19.6\) Round the number \( 262.0 \) to nearest tenth. Round the number by following steps: - step0: Round \(262.0\) to \(1\) decimal places using standard rounding method: \(262.0\) - step1: Round \(262.0\) to \(1\) decimal places using standard rounding method\(:\) \(262.0.0\) Round the number \( 16.0 \) to nearest tenth. Round the number by following steps: - step0: Round \(16.0\) to \(1\) decimal places using standard rounding method: \(16.0\) - step1: Round \(16.0\) to \(1\) decimal places using standard rounding method\(:\) \(16.0.0\) Round the number \( 50.0 \) to nearest tenth. Round the number by following steps: - step0: Round \(50.0\) to \(1\) decimal places using standard rounding method: \(50.0\) - step1: Round \(50.0\) to \(1\) decimal places using standard rounding method\(:\) \(50.0.0\) Here are the unit rates for each scenario, rounded to the nearest tenth: 20. For 150 pages in 3 hours: \[ \text{Unit Rate} = \frac{150 \text{ pages}}{3 \text{ hr}} = 50.0 \text{ pages per hour} \] 21. For 1,310 miles in 5 days: \[ \text{Unit Rate} = \frac{1310 \text{ mi}}{5 \text{ days}} = 262.0 \text{ miles per day} \] 22. For \$240 for 15 piano lessons: \[ \text{Unit Rate} = \frac{240 \text{ dollars}}{15 \text{ lessons}} = 16.0 \text{ dollars per lesson} \] 23. For \$98 for 5 books: \[ \text{Unit Rate} = \frac{98 \text{ dollars}}{5 \text{ books}} = 19.6 \text{ dollars per book} \] These unit rates provide a clear understanding of the cost or quantity per unit of measure.