Write the equation of the line that is perpendicular to y=1/2x+3 and has a y-intercept of -4

What are the domain and range of the function? f(x) = -4 (sqrt)x

Convert 2000 swiss francs to dutch guilders

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?