Needed asap appreciated brainlestwill be given

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.

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

Find two numbers if their sum is 91 and the ratio is 6: 7?