12
1 sixth is equal to how many twelfths? **)
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6
II

Which statements are true? see picture

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?