I think that the answe my be b
You want to solve for x so add 18 from both sides of the equal sign. making it 3x=12. then divide both sides by 3 making x=4. x is 4.
Answer:
the answer is 0 to 1 and 3 to 4
You need more information. How much is each sandwich? You could give that value a variable too. In that case p=price of sandwich so earnings=px
Well...just look at ur graph...it appears that the more fliers u send out, the more customers there are....therefore,when the fliers are increased, the number of new customers will increase because the graph shows a positive association