He earn around $36629 as intrest.
so usually intrested is calculated according to the percentage.
some monthly and annually.
so you cannot have negative number for %
and he gained then there no way .then have negative number..
Answer:

Step-by-step explanation:

Answer:
3 + 8x
Step-by-step explanation:
Answer:
n = 5.33→
Step-by-step explanation: