The answer is A because the area is all the points added together so you need to times it by Y and you get the area which is 4.9
Answer:
3x4÷2=6 is the area as base X height Divided by 2.
C a kilogram is 1,000 grams
Marie= X
andre= 3X
Jane=6X
840= X + 3X + 6X
840= 10x
Marie=84
andre=252
Jane=504