The bike course is 80 miles long and i have ridden 44 miles of the course. what percentage have avridden?

The product of two negative rational numbers is always zero sometimes zero never zero

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?

In an improper fraction, is the numerator equal to, less than, or greater than the denominator