A vendor sells 18 greeting cards in an hour. Some of the cards have photographs on them. Others have
illustrations. The cost is $2 for cards with photos and $3 for cards with illustrations. The total cost of the
cards is $44.
Part A: Write a system of equations that you can use to find the number x of cards with photographs and the
number y of cards with illustrations sold.
Part B: Find how many of each type of card sold.