Safiya needs to find a number that can be multiplied by 3^18 to result in a rational product. Which values could she use?
Select all that apply.

3^12
3^4
3^3
3^1/18
3^18
3^1/6

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

What does independent variable and dependent variable mean in math?