<h3>
Answer: $6</h3>
Explanation:
To take 10% of anything, move the decimal point 1 spot to the left.
The number 60.0 will become 6.00 or simply 6.
In other words, we chop off the 0 at the end go from 60 to 6.
AS we know that:

And we have the volume and we can calculate the SA,,,
So that, we can conclude:

Are you
satisfied?
I hope this helps you
slope=y2-y1/x2-x1
slope=2-(-1)/1-2
slope=3/-1
slope= -3