The triangles shown must be congruent. True or False

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?