Which one can it , it be correct I’ll give brainlist

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?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)