You've decided to give your best friend a bag of marbles for his birthday. Since you know that your friend likes green marbles better than red ones, the bag has 5 times as many green marbles as red The label on the bag says it contains a total of 90 marbles. How many green marbles are in the bag? Write an equation or systems of equations to represent this situation. Then solve the problem using one of the methods we studied in this chapter. Type your answer rounded to the nearest whole number.