Place values:
As each is in a different place value, when we add them neither will affect the other, meaning:

Answer: B 4.39
Do 252 divided by 36 and you should get 7. so the average number of calls would be 7
The answer is D. A function is to where a line can be drawn upon the y axis and not touch two points.
A) 18x2 = 36
hope I helped
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