What is the value of W?

1) sqrt(7)
2) sqrt(147)
3)sqrt(21)
4)sqrt(245)

Which of the following is the correct equation for this function? a. y= (x+4)(x+2) b. y=x^2+ 3x – 2 c. y+ 2 = – 2(x+3)^2 d. y+ 2 = 2(x+3)^2

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Sum of the interior angles of a pentagon