First, let's calculate the total cost for food. We know that we have 20 people to feed, and it costs $5 to provide food for each person. Therefore, we multiply the number of people by the cost per person to get the total cost for food. That would be:
20 people * $5/person = $100
So, the total cost for food is $100.
Next, let's calculate the total cost for the games. We're assuming that each person is playing x number of games, and that each game costs $1 to play. Therefore, we multiply the number of people by the cost per game and the number of games each person plays to find the total cost for games:
20 people * $1/game * x games = $20x
So, the total cost for the games depends on the number of games that each person plays.
If we want to find out the total cost of the party, we need to add the total cost for food and the total cost for games. This can be represented as:
$100 + $20x
This means the total cost of the party will be $100 plus $20 times the number of games each person plays. The exact total cost will depend on the value of x, i.e., the number of games each person plays.