An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $2000 and her stock in Company B was worth $5720. The stock in Company A has decreased 12% since last year and the stock in Company B has decreased 15%. What was the total percentage decrease in the investor's stock account? Round your answer to the nearest tenth (if necessary).

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.