One cubic millimeter of Mrs. Murphy's blood contains about 5,000,000 red blood cells. There are about 4,900,000 cubic millimeters of blood in her body. Determine approximately how many red blood cells Mrs. Murphy has in her body. State operation used and write answer in proper scientific notation (can use e)

she has about 24500000000000 red blood cells  in her body.

Step-by-step explanation:

hope this helps

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6