Can someone help me on this/

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

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

15 points ! ~ see if you know the answer to both you!