Answer:
train A is 403
and train B is 72
because if the total weight is 479 and train A is heavier than train B with a difference of 403 to get their weights each, you'll say 479( total amount of weight) - 403( the difference) which or = 72...
where you have A as 403 and B as 72
I think it is c but pet me know
Quantity of paint left =
gallons
Solution:
Quantity of yellow paint =
gallons
Quantity of green paint =
gallons
Quantity of blue paint =
gallons
Quantity of paint used =
gallons of each paint
Quantity of paint left =
gallons of each paint
Quantity of paint left = 
Taking LCM for 5, 6, 8, we get LCM = 120



Hence, Mark will have
gallons of paint left after painting the mural.
D) you add x^2 and x^2 and you’ll get 2x^2+1