Answer the following questions.
1) Solve the percent change problem using the proportion formula. List the information
given by each situation. Show the substitution into the proportional formula equation.
State the final result in a complete sentence using the appropriate unit.
A city has a sales tax rate of 9%. If Dion paid $6.30 in sales tax on a new guitar pedal, how much
was the purchase price of the pedal?
Increase or decrease:
O Increase
O decrease