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:
Answer:
the value would be $1,250,000
Step-by-step explanation:
The answer is 52.80 because the tip is $8.80 and 44.00+8.80=52.80
The answer is B. hope that help