Question

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

Membership Fee: $50 (one-time cost)
Air Freshener Cost: $4 per car per month
Washing Cost: $10 per car per month
Tire Replacement Cost: $400 per car
Tire Pressure Check Cost: $15 per month
The total cost for 12 months of this service for n cars is given by the expression below.

568n+230

Which statement best describes the constant in the expression?

A.
It is the total cost of the air freshener, washing, and tire replacement for 12 months.
B.
It is the total cost of the membership fee and the tire pressure check for 12 months.
C.
It is the monthly cost of the membership fee and the tire pressure check.
D.
It is the monthly cost of the air freshener, washing, and tire replacement.

Answer 1

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

Explanation:

Those prices are the only ones that do not change from month to month by car or necessity

Answer 2

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

Explanation:

Hi, to answer this question we have to analyze the information given:

568n +230

The constant in this expression is 230

230 equals to the cost of the membership fee ($50) and the tire pressure check for 12 months ($15 x 12 months).

Mathematically speaking:

50 + (15 x12) = 50 +180 = 230

So, the correct option is B)It is the total cost of the membership fee and the tire pressure check for 12 months.

Feel free to ask for more if needed or if you did not understand something.