Yo help me bro i give the crown thing

Kevin has just finished paying off his loan. he was assessed a service charge of $422. he paid off the principal and the interest by making weekly payments of $36.13 for four years. if the principal was $7,150, how much did kevin pay in finance charges, to the nearest dollar? a. $498 b. $365 c. $422 d. $787

Which statement about perfect cubes is true

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.