brainly.com/question/5027087Let C, S and H be the diameters of cell, sand and hair
Diameter of a cell:

Diameter of a grain of sand:

Part A:

meters, because it takes 5 movements right of the decimal dot, until there is only one digit to its left.
Part B:
we are comparing

to

,

thus S is 20 times larger than C
Part C

thus,

Part D.

thus 300 nm are written in meters as follows:
T\The answer would be 3 6/10, or 3.6.
Answer:
POINTSSSSSSS
Step-by-step explanation:
THXXXXX
Answer:
B.99°
Step-by-step explanation:
105°+ 66°+90°+ angle c=360°
angle c= 360° - 261
=99°