Answer:
your question Is not in Mark
Its perpendicular, if you need me to explain lmk
Your answer would be
he needs .4 Liters of milk
Hope this helps :)
(6x^3 + 4x-2) + (4x^2 + 3x^3 - 6)=
6x^3 + 4x-2 + 4x^2 + 3x^3 - 6=
9x^3+4x^2+4x-8
R = 8 since 8 times 10 = 80