An average person has 6x10 2power times as many red blood cells as white blood cells. a small sample of blood has 7x10 3power white blood cells. about how many red blood cells are in the sample

4.2×10to the 6th or 4,200,000

Step-by-step explanation:

First you have to know that you are multiplying these two numbers. When you multiply exponents like there you add the matissa's (6&7) and add the exponents.

6×10to the 2 * 7×10to the 3rd

42 × 10to the 2+3

42×10to the 5th

Something else you need to know is your matissa cant be higher than 10

So:

4.2 × 10to the 6th is your answer

Let's follow the BEDMAS rule.

First we should do everything inside the brackets. According to BEDMAS we should do multiplication first before subtraction:

(28 × 5 - 5 × 190)

28 × 5 = 140
5 × 190 = 950

(140 - 950) = -810

So now we have:

(-810 - 2 × 5^-2) / 2^3

Next, we do exponents so:

5^-2 = 1/25
2^3 = 8

(-810 - 2 × 1/25) / 8

(-810 - 2/25) / 8

(-20252/25) / 8 = -5063/50

So now we have:

(-5063/50)^4 × 288

If we plug the first term into a calculator and out it to the party of 4, we get:

105136058.7

So that number times 288 we get:

3.03x10^10 as the answer