Moriah pays $25 to join a lunch club that allows her to buy fancy lunches for $5 each. Let $\displaystyle{L}\usepackage{cmbright}\Huge\$ represent the number of lunches she purchases and $\displaystyle{C}\usepackage{cmbright}\Huge\$ represent the total cost.

i) Give an equation that describes the situation.

ii) What is the total cost of buying 12 lunches?