What is the check digit (d) for the UPC barcode number 2-91273-05213-d?
A. 5
B. 7
C. 9
D. 0

What is the vertex form of f(x) = x2 + 6x + 3

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2