I need to solve this please help

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

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

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°