A student sold baseball cards for $1.50 a piece and basketball cards for
$3 a piece. The student earned a total of $144 selling a total of 72 cards.
The graph models the system of equations that represents these
constraints. Which is the best estimate of the number of baseball cards
the student sold?
Number of Basketball Cards
20
20
40
40
60
60
80
100
Number Sold
Income
0
20
40
60
80
100
Number of Baseball Cards
O A 52
O B 24
C
48
○ D 95