Answer:
the number of caps be 8
Explanation:
The computation of the number of caps ordered in order to equal the cost is shown below:
Let us assume the number of cap be x
Now the equations are
17.75x + $30
15.50x + $48
Now equate these two equations
17.75x + $30 = 15.50x + $48
17.75x - 15.50x = $48 - $30
2.25x = $18
x = 8
Hence, the number of caps be 8