Answer:
b)252 is the answer
Step-by-step explanation:
x\42=6
x=6*42
x=252
<h2>

</h2><h2>Option C</h2>
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Answer:
14 tests in 7 weeks
Step-by-step explanation:
Second one is correct, that is an identity.
Third one is a contradiction:
6x - 15 = 3 * (2x - 6) ------> 6x - 15 = 6x - 18
Fourth one:
5x - 3 * (x - 4) = 2 * (x - 6) ---> 5x - 3x + 12 = 2x - 12 ---> 2x + 12 = 2x -12
So this is a contradiction as well.
Answer:
16 13 13 11 11 9 9 8 Median = 11 Mean = 11.25