The answer is 1.857 since there is 1000 grams in a kilogram
The graphs insect at 3 and 13
All sides are equal in a square



One side of the square measures 7+6 = 13
Hence, side DC is 13 units
Y=mx+b
-b -b
--------------
-by= mx
-------------
m m
-by
------
m
That's not enough information to calculate your grade from.
-- You've told us the scores you have in things that go together
to make up (35 + 5 + 25) = 65% of your grade.
-- We don't know your scores in the things that make up the other
35% of your grade.