Answer:
[tex]\boxed{c = 49.99n + 499.00}[/tex]
Step-by-step explanation:
[tex]\begin{array}{rcl}c& = & \text{total cost}\\n & = & \text{number of games}\\49.99n & = & \text{cost of games}\\499.00 & = & \text{cost of computer}\\49.99n + 499.00 & = & \text{total cost}\\c & = & \mathbf{49.99n + 499.00}\\\end{array}[/tex]
[tex]\text{The expression for how much to spend is $\boxed{\mathbf{c = 49.99n + 499.00}}$}[/tex]