How do I solve for x??

Step-by-step explanation:

W.K.T angle of a straight line is 180°.

40°+2x+30°+40°=180°

110°+2x=180°

2x=180°-110°

2x=70°. x= 70°/2=35°

X=35°

Hope this helps you.

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.