In which direction does the head of the molecules of the plasma membrane face?
o toward the head of another molecule
o toward the middle
o
away from water
o toward the outside

toward the outside

Step-by-step explanation:

The plasma membrane is composed of the phospholipid bilayer and cholesterol.The phospholipids have a head and two tails.The head is water loving, hence it is termed as polar/hydrophilic.The tails are nonpolar/ water fearing/hydrophobic.Both inside and outside the cell, water is vital thus the phospholipid line up in two layers where the head points outwards and the tails hidden in the middle.

3; 9 is 8 to -4

step-by-step explanation:

this is answer of 144 cubic meters