Paul bought a student discount card for the bus. The card cost $7 and allows him to buy daily bus passes for $1.25. After one month, Paul spent $29.50. How many daily bus passes did Paul buy?

(29.5 - 7) / 1.25 = ?

To find out how many daily bus passes Paul bought in one month, we need to determine his total expenses on daily bus passes and then subtract the cost of the student discount card.

Let's start by calculating how much Paul spent on daily bus passes in one month. We are given that the card cost $7, and Paul spent a total of $29.50. So, we subtract the cost of the card from the total amount spent:

Total amount spent - Cost of the card = Amount spent on daily bus passes
$29.50 - $7 = $22.50

So, Paul spent $22.50 on daily bus passes in one month.

Now, let's calculate how many daily bus passes Paul bought. We know that each daily bus pass costs $1.25. To find the number of passes, we divide the total amount spent on daily bus passes by the cost of each pass:

Amount spent on daily bus passes ÷ Cost of each pass = Number of daily bus passes
$22.50 ÷ $1.25 = 18

Therefore, Paul bought 18 daily bus passes in one month.