<h2>
Answer:</h2>
The area of the top surface of the washer is: 160.14 square mm.
<h2>
Step-by-step explanation:</h2>
The top of the surface is in the shape of a annulus with a outer radius of 10 mm and a inner radius of 7 mm ( since the diameter of the hole is: 14 mm and we know that the radius is half of the diameter)
Now, we know that the area of the annulus region is given by:

where R is the outer radius and r is the inner radius.
Here we have:

Hence, we have:

Answer:
good evening good evening good evening good evening
I only have one for 12
12, 21
24, 42
36, 63
48, 84
<span>quotient of 63 and a number h would be 63/h
14 less than that would be 63 over h - 14
</span>