Final answer:
Camden can buy a maximum of 14 candies.
Step-by-step explanation:
To determine the maximum number of candies that Camden could buy, we need to calculate how much money he has left after buying the drinks.
Each drink costs $6, so buying 5 drinks would cost 5 x $6 = $30.
Camden has $80 to spend, so after buying the drinks, he would have $80 - $30 = $50 left.
The candies cost $3.50 each. We can divide the amount of money Camden has left by the cost of each candy:
$50 รท $3.50
= 14.28.
Since Camden must buy at least 15 drinks and candies altogether, he can buy a maximum of 14 candies.
Therefore, the maximum number of candies that Camden could buy is 14.