A red blood cell is 7 x 10-6 m in diameter. There are about 2 x 10-13 red blood cells in a 125-lb person. If all of the red blood cells were lined up end to
end, how long would the line be? Write your answer in scientific notation.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

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are ya tryin to ask something or is this a statement