You can use photo math and calculate each equation separately and it shows you the graphs, then pick the answer where the graph looks the same to the question.
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Uhm hope this help (:
8,549,176,320 What makes this number unique? Answer: The said number has all the numbers from 0-9 exactly once and what is special is they are in lexicographical order of their English words.
Answer:

Step-by-step explanation:

Use commutative property of addition 

use associative property of addition 

Hence 
Circumference c=2(pie)r
C=2(pie)5
C=31.42
Answer:
Given the sides of a triangle, the Pythagorean Theorem (its converse, really) lets us distinguish the right triangles from the other triangles. The right triangles are the ones where , where is the length of the longest sides and and are the other two. So the Pythagorean Theorem works for any triangle.
Step-by-step explanation: