imc

$\text{textdollar}3$ boxes give us the most popsicles/dollar, so we want to buy as many of those as possible. After buying $2$, we have $\text{textdollar}2$ left. We cannot buy a third $\text{textdollar}3$ box, so we opt for the $\text{textdollar}2$ box instead (since it has a higher popsicles/dollar ratio than the $\text{textdollar}1$ pack). We're now out of money. We bought $5+5+3=13$ popsicles, so the answer is $\boxed{13}$.