Fundraising Cookie Sales

In a school club, the members decided to fundraise by selling cookies. If they sell each cookie for $3, they plan to raise a total of $600. However, the number of cookies they can bake is limited to 150. If they manage to sell all the cookies they bake, how much more money do they need to meet their fundraising goal?

Let the number of cookies sold be represented by $c$. The equation for the total money raised from cookie sales can be expressed as: $$ ext{Total Money} = 3c$$. The allowable number of cookies baked limits them to an additional equation: $$c \leq 150$$.