When expressed as a decimal number, which of the following is a repeating decimal? 2/5
3/8
5/6
7/10

5/6 would be repeating.

Step-by-step explanation:

In decimal form it goes 0.83ext(extended) as in repetitve.

Or if you want to know further it goes like this.

0.833333333333333333333

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.