Is 6 a solution of 5(c - 9) = - 15?

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.

Atemperature of 1.64◦f corresponds to answer in units of ◦c.

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55