I need help with all 4 questions plz

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Can someone me on this math worksheet about finding the given variable for these angles, and whether the triangles are similar. i really need these answers i’m so confused: ( !

Whats the area of a square is 16 cm square. the square is the base of a cube. what is the surface area of the a. 16cm2 b. 32cm2 c. 64cm2 d. 96cm2