1. Solve. 3(2x + 9) < 1x - 2

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.

Find the value of x for which line a is parallel to line b

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect