You and your friend are saving money to buy bicycles that cost $175 each. The amount y (in dollars) you save after x weeks is represented by the equation y=5x+45. The graph shows your friend’s savings.

a. Who has more money to start? Who saves more per week?

more money to start.

more money per week.

b. Who can buy a bicycle first? Explain.

Your friend reaches $175 after weeks and you reach $175 after weeks. Therefore, can buy a bicycle first.