How far in miles is 68 km? my daughter, who is in the air force, has just been told she will be going to balad which is 68 km from bagdad. how far is that?

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