Question

2 audio cassettes and 3 video cassettes cost` 425 and 3 audio cassettes and 2 videocassettes cost ` 350. What are the prices of anaudio cassette and of a video cassette ? in substitution method and graph

Answer 1

a=audio cassette
b=video cassette
So
2a+3b=425
3a+2b=350

Hope I helped u
Sorry I do no about the graph