Refer to the menu attached and answer the following questions. a. 3 friends bought the same sandwiches. They paid a total of $15.45. Write and solve an equation to calculate the price of each sandwich. What did they order? b. Write an algebraic expression that represents the change that Samir gets when he pays for a sandwich using a $10 bill. c. Samir got a change of $6.01. Write and solve an equation to calculate the price of his sandwich. What did he order?