The quantity of cardboard that is needed to make the top of the box is:
<u>36 inches squared</u>.
Step-by-step explanation:
When the exercise asks you about the "inches squared," it's asking you about the area, the area of a rectangle (a rectangle because a cardboard box regularly is rectangular) is:
<u>Area of a rectangle = length * width</u>
Now, you must replace the length and the width by the values in the exercise (doesn't matter what is width or length, remember the commutative property of the multiply):
Area of a rectangle = 9 in * 4 in
<u>Area of a rectangle = 36 in^2 or 36 inches squared.</u>
Very easy! 6 people= 12 servings so 1 person= 2 servings We have 112 people so we need 112 x 2= 224 servings So she will make 224 servings with an 8 servings pan, 224/8= 28 pans. The minimum number of pans she need in order to serve 112 people is 28 pans!