Which of the following describes the graph of f–1(x)?
a. the graph of f–1(x) is the reflection of the graph of f(x) in the line y = –x.
b. the graph of f–1(x) is the reflection of the graph of f(x) in the y-axis.
c. the graph of f–1(x) is the reflection of the graph of f(x) in the x-axis.
d. the graph of f–1(x) is the reflection of the graph of f(x) in the line y = x.

What is the solution of the systems of equations? y=2/3x+3 x=-2

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

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?