Solve the problem.A picture costs $720. The sales tax is $39.60. What is the sales tax rate?

Solve.The price of a shirt was reduced from $27.50 to $16.50 . What was the percent of decrease in the price?

Find the indicated rate.Tim’s car will go 362.5 miles on 12.5 gallons of gasoline in city driving. What is the rate in miles per gallon?

Use a proportion to solve the problem.The scale on a map is inch to 5 miles. Find the actual distance between two towns for which the distance is represented by 27 inches on the map.

Find percent notation.0.031

Find percent notation.5

Solve.Last year, Maria earned $316 per week. This year, her salary increased to per week. What is the percent of increase?

Translate to a proportion and solve. What percent of 40 is 32?

Use a proportion to solve the problem.If 5 sandwich rolls cost $1.40, how much will 24 rolls cost?

True or False?  Prostaglandins must be given via continuous infusion because of the rapid extraction and metabolism by the lungs.