Micah and three friends bought a total of 4 bags of pretzels and 4 drinks at the snack stand. If a bag of pretzels costs x dollars, and a drink costs y dollars, what expression could you write to show how much the friends spent in all? suppose instead that one friend bought all 4 bags of pretzels and another friend bought all 4 drinks. Write an expression that shows the total cost. I need the answer fast