Kilograms would be the most appropriate way
Answer:
4
Step-by-step explanation:

10 i think..... plz don't report me
Answer:
7
Step-by-step explanation:
(x-2)^2
x^2-4x+4
-3^2-4(-3)+4=7
We can create a formula first.
X will be the unknown number
840= 357+x
-357 -357
483 = x
Hope this helps