Rosemarie bought 2 pairs of shoes for $21.50 each and 4 pairs of socks for $3.25 each. If the sales tax rate is 5%, what is the total amount of money Rosemarie spent?

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?

Anyone know? is appreciated! will mark brainliest if correct!

10% of 1,900,000. show me how you got the answer