Joy Wigens, who works at Putnam Investments, received a check for $1,900. She deposited 12 of the check in her Citibank account. How much money does Joy have left after the deposit?

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.