Question

Help me with this question please!!!!!!

Answer 1

Trey's : $20+ $0.80song
Deb's : $21 + $0.60 song

20+0.8s = 21+0.6s
0.8s-0.6s= 21-20
0.2s=1
then s = 1/0.2 = 5

so the monthly charge will be the same for both clubs for 5 songs.

and it will cost $20+$0.80(5)= $20+$4= $24.