I’ve been trying sooo hard to get this and i can’t,

Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)

How can you find the mean absolute deviation (mad) for this set of data?