An oil company fills 1 over 10 of a tank in 1 over 5 hour. At this rate, which expression can be used to determine how long will it take for the tank to fill completely? 1/5 ⋅ 10 hours
1/10 ⋅ 5 hours
1/5 ⋅ 1/10 hours
5 ⋅ 10 hours

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3. find the radius of circle p.4. find y.

Restrictions on f(x) = 1/x+5 and g(x) = x-2

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?