Answer:
its A
Step-by-step explanation:
the answer would be revenue
-3 = 2x+6y
2x+6y = 0
By transitivity, -3 = 0, a contradiction. No solution.
If you graph the lines, you will see they are parallel, therefore never intersect.
47.70- 3.30=44.40
44.40/ 3=14.80
each cd cost 14.80