Solve the inequality 15t > 180

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

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?

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form