I need help with these 5 questions.

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

(03.03 mc) choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) select one: a. line through the points 0 comma 6 and 12 comma 0 b. line through the points 0 comma negative 6 and 12 comma 0 c. line through the points 0 comma negative 12 and 6 comma 0 d. line through the points 0 comma 12 and 6 comma 0

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?