Find a. 1/x^-3 = x^4*x^a

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.

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.