Answer:
s = 9t + 18
Explanation:
Set up your equation
s - 15 = 9t + 3
Now get s by itself by adding 15 to both sides
s + 0 = 9t + 3 + 15
s = 9t + 18
If you know the value of t, plug that into the equation to solve further.
8: 2 2 2
10: 2 5
GCF: 2
The greatest common factor is 2
16 songs for $ 20.....20/16 = $ 1.25 per song
y = 20 - 1.25x <== ur equation