Answer:
y=2x+30
Step-by-step explanation:
Let x be the number of caricatures Bob sells. He pays $2 for each drawing he sells, then he pays $2x for selling x drawings.
He pays the fair $30 for space to set up a table, so an equation which the total amount of money Bob pays the fair in order to sell his caricatures is
[tex]y=2x+30[/tex]
The graph of this function is attached.