Which expression is not equivalent to 6^3/6^6

1/6^2. 6^-3. 1/216. 1/6^3

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

Hey hotel charges guests $19.75 a day to rent five video games at this rate which expression can be used to determine the charge for renting nine video games for one day at this hotel? pls

Factor the polynomial by its greatest common monomial factor.