Three cards are lined up on a table. each card has a letter printed on one side and a positive number printed on the other side. one card has an r printed on it, one card has a g printed on it, and one card has a b printed on it. the number side of each card is facedown on the table. the product of the number on the card with an r and the number on the card with a g equals the number on the card with a b. the product of the number on the card with a g and the number on the card with a b is 180. and, five times the number on the card with a b equals the number on the card with a g. determine the product of the numbers on the three cards.
can anyone out with this question?