Dan spends his money on baseball games and concert tickets. Baseball tickets cost $15, and concert tickets cost $25. His entertainment budget is $150.

a. Draw Dan's budget constraint, putting baseball tickets on the x-axis.

b. Dan decides to attend three concerts and five baseball games. Plot this point on the budget constraint.

c. Dan's best friend Jay tells Dan that his favorite thing to do is go to concerts. In fact, going to concerts is popular with a lot of Dan's friends. Will Dan's budget constraint increase, decrease, or stay the same? Will the quantity of concerts he attends increase, decrease, or stay the same?