Find the standard form of the equation of the parabola with a focus at (7, 0) and a directrix at x = -7.

y = one divided by twenty eightx2
x = one divided by twenty eighty2
-28y = x2
y2 = 14x

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?