The diameter of one red blood cell is about 2.95E-4 of an inch. It would take about 5.35E12 red blood cells laid end to end to span the circumference of the earth. What would be the length of this chain of red blood cells?

A.

1.578 × 10^9 inches

B.

1.814 × 10^8 inches

C.

1.578 × 10^8 inches

D.

1.814 × 10^9 inches

will mark brainy so please be right though!!

If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second