3)
Let the amount of money the fast-food worker earns in hours be P.
Then in t hours, we must have that
[tex]P(t)=3+2t[/tex]In this case, t = 8 hours, therefore
[tex]P(8)=3+2(8)=3+16=\text{ \$19}[/tex]Therefore the fast-food worker will earn $19 in 8 hours
So the right choice is option B
