Type the correct answer in the box. Use numerals instead of words. This system of equations has been placed in a matrix:

y = 700x + 200
y = 5,000 − 75x

Complete the matrix by filling in the missing numbers.

Column 1 Column 2 Column 3

Row 1 ___ -1 ___

Row 2 75 ___ ___

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.