Please help asap! my geometry homework doesnt make sense

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.

Find the percent cost of the total spent on each equipment $36, fees $158, transportation $59 a. 14%, 62%, 23% b. 15%, 60%, 35% c. 10%, 70%, 20% d. 11%, 62%, 27%