Erin completes 11 transactions in his bank account. In 6 transactions, he withdraws $10 each time. In 5 transactions, he deposits $20 each time. Find the total net change in dollars.

What is the solution set of the quadratic inequality x^2-5< or equal to 0

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?

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