Pls help before I fail

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.

In which form is the following function written? y = - 2(x – 3)(x + 5)

What is the lcm of 16 and 40 ? 24 and 40 ?