Which of the following problems can be solved using the equation below? x+15=2x
Lisa is twice as old as she was 15 years ago. How old is Lisa now?
In 15 years Rosa will be twice as old as she is now. How old is Rosa now?
Alexa is twice as old as she will be 15 years from now. How old is Alexa now?
When Fiona is 15 years old, she will be twice as old as she is now. How old is Fiona now?

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.