Answer:
Correct answer is 'A'
Explanation:
so money he save per week = $12 - $3 = $9
Now,
To earn 9$ it takes one week or it can be represented as:
$9 = 1 week
So,
$1 = 1/9 week
$72 = (1/9*$72)weeks
$72 = 8 weeks
therefore it will take 8 weeks to save enough money for the video game