Paul bought a student discount card for the bus. The card cost $7 and allows him to buy daily bus passes for $1.50. After one month, Paul spent $29.50. How many daily bus passes did Paul buy?
Paul bought daily bus passes.
Let N be the number of passes....so we have
7 + 1.50N = 29.50 subtract 7 from both sides
1.50N = 22.50 divide both sides by 1.50
N = 15 passes
+44 
