ANSWER
T = 1.49x + 15.99
Step-by-step explanation
Let the number of games to be downloaded be x.
The website charges a membership fee of $15.99 and a fee of $1.49 to download a game.
This means that if you want to download x games, the download fee will be:
1.49 * x = $1.49x
The total cost (in dollars) to download any number (x) of games will therefore be:
T = 1.49x + 15.99