Just do pythagorean theorem. The answer is the square root of 75
The ration is 12 muffins to every 21 donuts
If you think about how it works when cups are stacked. you will begin with the height of the cup plus the height of the lip you would then add just the heigt of the lips until you get to the height needed. so your answer should be 19 cups
<span>(2x + 1) • (x - 3) • (x + 4)</span>