There are red blood cells contained in 50 oubic millimeters of blood se scientific notation. use the multiplication symbol in the math palette as needed )

5\times10

Step-by-step explanation:

We know that the scientific notation is a representation of a very large or a very small number in the product of a decimal form of number (commonly between 1 and 10) and powers of ten.

Given : There are red blood cells contained in 50 cubic millimeters of blood .

The representation of 50 cubic millimeters in scientific notation is given by :-

For Store A:

Number tasters = 258

Number preferring local brand = 167

Proportion = 167/258 = 0.6472

Therefore, the proportion based on preference in store A is 0.6472. Do the same for the other two stores. 

Step-by-step explanation: