A building contractor buys 525 metal bars. Because he is buying more than 500 bars, the wholesaler gives him a discount of $420. The total price is $3,780. What is the cost of each metal bar?

The cost of each metal bar is $8.

Step-by-step explanation:

We are given the following  in the question:

Total number of bars bought = 525

Discount price = $420

Total price = $3,780

Let x be the unit cost of metal bars.

Thus, we can write the equation:

Solving the equation, we get,

Thus, cost of each metal bar is $8.

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.