Answer: $4x
Explanation:
Cost of book = $x
Since the games costs 3 times as much as the book, therefore, the cost of the game will be: = 3 × $x = $3x
Therefore, the amount of money that Danny spent to buy the book and the game will be the addition of the cost of the book and the game. This will be:
= $x + $3x
= $4x