Hello can someone plss help me with this question!!

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

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?

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?