Idon’t understand this, can some one

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?