Simplify the rational expression -12x^3/x^3-5x^4

I attatched an image SOMEONE PLEASE HELP

For [tex]f(x) = 4x+1[/tex] and [tex]g(x) = x^{2} -5[/tex] find [tex](f[/tex] ° [tex]g)[/tex][tex](4)[/tex]

George is putting trim around his rectangular deck, including the gate. he will need 44 feet of trim to do the entire deck. if the deck is 13 feet long, how wide is the deck?

92ft long and 48 wide resurface 2.75$