What is the ratio of 2 hours and 115 minutes

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.

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

What is always true about a positive integer raised to a negative odd power?