(05.05)What is the rate of change for the linear relationship modeled in the table? X y
-1 10
9
on 6 -
8
5 7
NIL
Oo
1
2
02

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?

We just started the introduction into circles and i have no idea how to do this.

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10