A tune up automotive facility marks up its part by 25% suppose that the facility charges its customers $1.75 for each spark plug it's sells which is the facility cost for each spark plug?

The Facility cost for each spark plug is $1.4.

Step-by-step explanation:

Given:

Mark up cost = 25%

Charges for each spark plugs for customers = $1.75

We need to find the cost of each spark plug for the facility.

Solution:

Let the Facility cost of each spark plug be 'x'.

So we can say that;

Markup cost =

So we can say that;

Facility cost of each spark plus the Markup cost is equal to cost facilty charges for customer.

framing in equation form we get;

Dividing both side by 1.25 we get;

Hence the Facility cost for each spark plug is $1.4.

1/800 is the right answer