At what substrate concentration would an enzyme with a Km of 0.0050 M operate at one-eighth of its maximum rate?

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?