Item 3 what is the surface area of a cube with a side length that measures 112 ft?

Surface area of the cube will be 75264 square feet.

Step-by-step explanation:

We know there are six sides in a cube. Therefore surface area of the cube is the addition of area of all six sides.

Since each side of a cube is a square having all sides equal in size.

Therefore area of one side of a cube = Side²

and area of the cube = 6 × side²

Now by putting area of the cube = 6 × 112² = 75264 square feet.

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies