Question

A car servicing station is running a special offer. The breakdown of the cost for different services is given below.

Answer 1

Answer: The total cost of the meme worship fee and the tire pressure check for 12 months.

Step-by-step explanation:

Let n be the number of cars .

Given: The breakdown of the cost for different services is given below.

Membership Fee: $50 (one-time cost)  → constant

Air Freshener Cost: $4 per car per month

⇒ Air Freshener Cost for 12 months per car =$4\times12\times n=48n$

Washing Cost: $10 per car per month  

⇒ Washing Cost for 12 months=$10\times12\times n=120n$

Tire Replacement Cost: $400 per car

⇒ Tire Replacement Cost for n car=$400n$

Tire Pressure Check Cost: $15 per month

⇒ Tire Pressure Check Cost for 12 months=$15\times12=\ 180$ → constant

Now, the total cost for 12 months of this service for n cars is given by the expression.

$50+48n+120n+400n+180\\=48n+400n+120n+50+180\\=568n+230$

Here the sum of constants =$180+50=230$ represents the the total cost of the meme worship fee and the tire pressure check for 12 months.

Answer 2

Answer:

C. It is the total cost of the membership fee and the tire pressure check for 12 months.

Step-by-step explanation:

The constant represents the sum of costs that are not "per car." Those are only "membership fee" ($50) and "tire pressure check" ($15/mo × 12 mo = $180).