I need help plz, last question!

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

Hey am have account in but wished to create an account here you guys will me with my make new friends of uk !

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?