Mary lives 2.1 miles north of her school. her classmate roger lives 1.3 miles west of their school .what is the distance between mary and roger’s houses ? round your answer to the nearest tenth of a mile.

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

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?

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?