The second condition tells you that

is half the size of

, so

, which could be rewritten in several ways. In standard form, that would be

.
You would do 0.25x (x is the unknown total number)=19. It is because of is a multiply sign, so 0.25*x=19. Divide both sides by 0.25 and you get 76 as your answer.
Answer:
3x + 12
Step-by-step explanation:
Answer:
Step-by-step explanation:9m -3m +2n = 6m+2n