Pls answer these questions

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me