Dave has $15 to spend on an $8 book and two birthday cards (c) for his friends. How much can he spend on each card if he buys the same card for each friend?
so assuming that he buys only one $8 book tee book cost 8 so he has 15-8 to spend on the birthday cards 15-8=7 he has 7 dollars to spend on 2 cards how much for each he needs to buy 2 cards with 7 dollars so to find cost per 1 card divide 7 by 2 since they are same value 7/2=3 and 1/2=3.5 he can spend $3.50 per card
