An inverse variation function has a k value of 8. Which ordered pair is on the graph of the function?

Nine more than four times a number is the same as one less than twice the number. find the number?

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

How do you write something in scientific notation?