Which of the following equations represents a linear function? a) y= x2+2x+3
c) y=+2
b) y=$+5
d) y= x3+7

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?

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?

If i purchase a product for $79.99 and two accessories for 9.99 and 7.00 how much will i owe after taxes applies 8.75%