Karim is ordering video games. each game costs $39.99, and there is a $4.85 shipping charge per order. how much will it cost him to order any number of video games?

Given:
Cost of a game = $39.99
Shipping charge = $4.85
Let,
number of video games be "n"
Now,
total cost = (cost of each game * total no. of games) + shipping charge
               = $39.99n + $4.85

So, you use the above equation to find the total cost of video games.