I'm not sure what this means, please help me I'll give you 10 points ;) (also i'm new to this thing and so far I'm liking it)

So all the possible solutions are:

Solution Steps:

First you need to solve the real inequality to understand how to find the rest of the possible equations.

Add 78 to both sides:

So now we know the real answer, but it ask for all possible answers.

(Means anything larger than 300 when you plug it into x - 78 > 300.)

Numbers that are greater than 378:

  1.)    (False)

  2.)    (True)

  3.)    (False)

  4.)    (False)

  5.)    (True)

  6.)    (True)

  7.)    (False)

  8.)   (True)

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it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.