Can someone please please help me?? I will mark you as brainlist

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Solve -.016x= -16. need solving this