The student council is organizing a T-shirt sale to raise money for a local charity. They make the following estimates of expenses
and income:
• Expense of $250 for advertising • Income of $12 for each T-shirt
• Expense of $4.25 for each T-shirt • Income of $150 from a sponsor
Write an equation for Income, I, for selling n t-shirts.
O I = 150 + 12n
O I = 150n
O I = 162n