How many more hydrogen atoms are there than nitrogen atoms in the average human body

(hurry! ) which expression is equivalent to the following complex fraction?

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top