I need to know what 13r - r =

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?

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

If sin(x) = 0 and cos(x) = 1, what is tan(x)?