20. Business and finance. Paul invested $5000 in a time deposit. What interest will he earn for 1 year if the interest rate is 6.5%? 22. Science and medicine. A chemist has 300 milliliters (mL) of solution that is 18% acid. How many milliliters of acid are in the solution? 26. Business and finance. Ms. Jordan has been given a loan of $2500 for 1 year. If the interest charged is $275 what is the interest rate on the loan? 38. Statistics. A survey of 400 people found that 66 were left-handed. What percent of those surveyed were left-handed? 52. Business and finance. The electricity costs of a business decreased from $12000 one year to $10920 the next. What is the rate of decrease?