Answer:

Step-by-step explanation:


Mass = density* volume
since density= mass/volume then mass/volume*volume=mass
= 4.5*0.4 = 1.80g
22/11 is equal to 2
So, it would be where 2 is on the number line.
Answer:

Step-by-step explanation:
Since
and
are equal, we can set them equal to each other:

Substitute
to solve for
:
