Answer:
Step-by-step explanation:
[tex]y = 25 + 0.65x[/tex]
If we want to find the cost to print [tex]50[/tex] posters, then we need to plug in [tex]50[/tex] for [tex]x[/tex]:
[tex]y = 25 + 0.65(50)[/tex]
[tex]y = 25 + 32.50[/tex]
[tex]y = 57.50[/tex]