Answer:
Paul spent [tex]$5[/tex] on the student discount car
Step-by-step explanation:
1. Paul spends $1.30 for each bus pass, and Paul buys 19 passes...
[tex]$1.30 * 19 = $24.7[/tex]
2. but Paul also buys a student discount card...
[tex]$discount card + 24.7 = $29.70[/tex]
[tex]$discount card = $5[/tex]