Kinda lost with this one been trying

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.

I’m still confused on how to work the percentages

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?