I have no idea to do this math homework problem- can anybody help?

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

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Which fraction below is equivalent to 10/12?