t=D/r
Divide r by both sides to get t by itself.
We'll use the notation 
for the principal value and 
for all the values:
Part I
Part II. In our range we can write
Part III.
Part IV.
10 times larger than a thousand. Also one decimal place larger
Answer:
840 in^2
Step-by-step explanation:
If the base is square and the side length is 10 inches, the areas of the base and of the top combined is 2(100 in^2).
The height of the prism comes from dividing the volume, 1600 in^3, by the area of the base, 100 in^2: It is 16 in. Then the combined areas of the four sides of the prism is 4(160 in^2).
The total surface area of the prsim is then 640 in^2 + 200 in^2, or 840 in^2.
Because you can always multiply a number infinitely, but there is a finite number of whole number factors.
