76 times a number -61 is equal to -89 less than a 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

Item 1 solve for s. s+24=90 −114 −66 66 114

If f(x)=x+7 and g(x)=1/x what is (fog)(x)