Writing an Equation with Two Variables Hugh bought some magazines that cost $3.95 each and some books that cost $8.95 each. He spent a total of $47.65. Let m represent the number of magazines and b represent the number of books. Which equation models the situation? m + b = 47.95 m + b = 60.55 3.95m + 8.95b = 47.65 8.95m + 3.95b = 47.65