Find the zero of the function, f(x) = 144 + 12x.

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?