One expression could be three x to the power of two. Let me know if that's right :)
The cost of 1kg of coal mined from the ore is $0.0397
Data;
<h3>The Cost of 1kg of Coal</h3>
To find the cost of 1kg of coal, we can simply and equate 1 ton to its equivalent in ton and the solve.

let's write this and equate it
1 ton = $35.99
907kg = $35.99
1kg = x
Let's cross multiply both sides and solve for x

The cost of 1kg of coal is $0.0397
Learn more on proportions here;
brainly.com/question/870035
The answer is that: there is 62% of 310? The answer is 186 pages.
The diagonal (hypotenuse) is 13 in.
You need to use the Pythagorean Theorem

then just plug in the numbers and solve for c.


13 = c