Mary can read 20 pages in 30 minutes. How long would it take her to read a 100 page book

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Step-by-step explanation: This is a proportions problem:

22 pages → 30 minutes

100 pages → x minutes

The proportion is

22/100 = 30/x

Then

x = (100/22)(30) minutes = 136.4 minutes.

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

(23*2)-12=x     x=34

step-by-step explanation: