Answer:
First of all, the second one? it lloks like you got it correct
Step-by-step explanation:
Answer:
It's 3 square units.
Count the "squares" and you get 3 and it's not real units so It's called "Square units".
:)
Answer:
B
Step-by-step explanation:
The mean is calculated as
mean =
=
= = 4.2 Kg → B