Solve the equation by completing the square. Round to the nearest hundredth if necessary.
x^2 - 3x - 12 = 0
A) 3.12, 3.77
B) 4.74, -1.74
C) -12.75, 15.75
D) 5.27, -2.27

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Beth makes batches of bluberry muffins and banna muffins. each batchis 6 muffins. she makes 2.5 batches of bluberry muffins. how many batches of bananna muffins should beth make if she wants to have a total of 60 muffins?

Can some one me with these questions