I don't understand this question that well, can you please help me.

Students taking a make-up test receive the following grades: 76, 90, 97, 96, 86, 95, 94, 69, 71, and 75. Which grade has a percentile rank of 80?

The test score with a percentile rank of 80 is _.

So a percentile rank of a score is how the score of a individual test taker compares to the scores of the other test takers.

To find percentile rank you need to use this formula:  R = P/100 x (N + 1)

The first step is to compute the rank (R) of the 25th percentile. This is done using the following formula: R = P/100 x (N + 1) where P is the desired percentile (25 in this case) and N is the number of numbers (8 in this case).

I hope this helps a bit. Good luck with the problem!

divide by 5

step-by-step explanation:

60/5 = 12

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c