Answer:
ok good job
Step-by-step explanation:
Cost/(number of cassettes) = $14.50/2 = x/15
Multiply by 15 to solve
15*($14.50/2) = x = $108.75
15 cassettes will cost $108.75.
The answer is 18.
Just replace the x with 2
Since the coefficients of d are not equal, then there can only be one solution
