The correct answer is B. $55
Step-by-step explanation:
To solve this mathematical problem you need to find the total budget of Carlos and then deduct all his monthly expenses, which would be equivalent to the money left for his tux.
1. To begin, we know each week Carlos earns $150, this means the total each month is $600 ($150 x 4 weeks each month = $600)
2. The expenses of Carlos include $200 for his car each month, $15 of gas each week or $60 each month ($15 x 4 = 60), $85 for his cell phone each month, and $200 for his tuition. This means, his total expenses are $545 ($200 + $60 + $85 + $200 = $545)
3. This means the money left for his tux is $55 as $600 (total of money) - $545 (total of expenses) = $55 (money left)