Answer:
interest: 8 interest rate: 16
Step-by-step explanation:
the interest is 8$ since you payed 8$ extra, the interest rate can be counted in another way but I forgot it. So 50 is 100%, you divide it by 100 and get 0.5. then you take 8/0.5 which means how many percent there is in 8 which is 16.
This can be solved much easier if you multiply by 2. you borrow 100 and get 116 in return. both interest and interest rate is 16
