You Have $\$ 90$ To Spend on Lunches This Month $\$ 1.75$

Short Answer

You have $\$ 90$ to spend on lunches this month. Each day, you can pack a lunch for about $\$ 1.75$ , or you can buy lunch at the cafeteria for $\$ 5.25$ . Let $p$ be the number of times you pack a lunch and $b$ be the number of times you buy lunch. The formula for $p$ in terms of $b$ is given by $p=$ _____ - _____ $b$ . Round answers to 2 decimal places.