Please help, and 20 PTS to whoever gets it right

Find the value of the variable and the length of each secant segment

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

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?