Question

John buys 100 shares of stock at $100 per share. The price goes up by 10% and he sells
50 shares. Then, prices drop by 10% and he sells his remaining 50 shares. How much did
he get for the last 50?
O $5000
$5500
O $4900
O $5050
O $4950
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Answer 1

Answer:

To calculate a molar mass, we simply sum up the contributions of each element or atom. For carbon dioxide, CO2, one carbon atom contributes 12.01 g/mol, the two oxygens together contribute (2)(16.00) = 32.00 g/mol. The molar mass is then 12.01 + 32.00 = 44.01 g/mol.

I hope this will be help you.