What fractions are equivalent to 15/45

Let r = 3. what is the value of r + 58?

Find the solution of system of equation y= x-4 y=4x+2

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?