Y=-16x²+197x+84 in vortex form​

Solve |2x - 5| = 4 if anyone could , that would be great

Standard deviation of 19,29,21,22,23

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