Given:
Amount = 8700
Time = 3 years
Rate of interest = 24% per annum
To find:
The principal values.
Solution:
Formula for amount:

Where, A is amount, P is principal, r is the rate of interest and t is the number of years.
Putting
, we get




Divide both sides by 1.906624.



Therefore, the principal value is about 4563.04.
The answer it 1. is A.
The answer to 2. is B.
11 1/4 or 11.25 is the answer
M= K/11LN You just need to move everything away from the M side by using division.
I'm sorry I only know one of them