1) Choose the best answer. Rational numbers are included in a group called (blank ) numbers ​

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.

Ihave trouble finding the nth term of a linear sequence

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?