What is the mean absolute deviation of 13,15,9,35,25

Determine whether triangle tjd is congruent to triangle sek  givent (-4,-2), j (0,5), d (1,-1), s (-1,3), e (3,10), k (4,4)and explain the reason.  select one: a. yes, by sssb. no, by aasc. no, by asad. yes, by sas

What is the measure of ac? 5 units 13 units 26 units 39 units

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)