Jillian surveyed students at her school and found out the following probabilities: P ( freshman ) = 0.30 P ( plays instrument ) = 0.20 P ( freshman and instrument ) = 0.10 P(freshman)=0.30 P(plays instrument)=0.20 P(freshman and instrument)=0.10 Find the probability that a student plays an instrument given they are a freshman. P ( plays instrument ∣ freshman ) =

Solve the system of equations. y= 2x y= x^2 - 15

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

What is the anwers for 9+2x=5x-3-x