A department store gives away a $10 gift card to every 20th customer and a $15 gift card to every 45th customer. a. Which customer will be the first to receive both gift cards? Customer # 180
b. After this customer receives both gift cards, what is the total amount in gift cards that the store has given away? S 150
Explanation : 45x4=180 20x9=180 15x4=60 10x9=90 90+60=150 hope this helps !