Noora7939 Noora7939 03-05-2015 Mathematics contestada For every bag of trail mix the local Scout Guide troop sells, they earn $0.45. a. Write an expression to represent this situation. b. Sarah sold 52 bags of trail mix. How much did she earn for her troop ? c. Let x represent the total number of bags of trail mix sold by Sarah's troop. Write an expression to show what percentage of bags Sarah sold.