Answer:
An exact number is one that has no uncertainty. An example is the number of tires on a car (exactly 4) or the number of days in a week (exactly 7). An approximate number is one that does have uncertainty. ... The number can be the result of a measurement.
Step-by-step explanation:

<em> </em><em>Linear</em><em> </em><em>Pair</em><em> </em>: - <em>Two</em><em> </em><em>adjacent</em><em> </em><em>Angles</em><em> </em><em>are</em><em> </em><em>set</em><em> </em><em>to</em><em> </em><em>form</em><em> </em><em>a</em><em> </em><em>linear</em><em> </em><em>pair</em><em> </em><em>of</em><em> </em><em>angles</em><em> </em><em>if</em><em> </em><em>they</em><em> </em><em>are</em><em> </em><em>not</em><em> </em><em>common</em><em> </em><em>arm</em><em> </em><em>are</em><em> </em><em>two</em><em> </em><em>opposite</em><em>,</em><em> </em><em>is</em><em> </em><em>called</em><em> </em><em>linear</em><em> </em><em>pair</em><em> </em>~™
Answer:
I think the answer is Option D, 135 degrees.
Since the angles of all of the octagon combined is 1080, divide that by 8 to get 135 which means that all 8 angles are 135 degrees.
Answer:(x, y) → (x + 8, y – 3)
The answer is C took the test