What is 2/3-1/2 equal to (fraction form)

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

Aparking garage charges $1.12 for the first hour and 0.50 for each additional hour. what is the maximum length of time tom can park in the garage if we wishes to play no more than $5.62

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.