Answer:
(A) 7.5 %
(B) 3.75 %
(C) 2.5%
(D) 0.625 %
Step-by-step explanation:
We have given effective rate of interest r = 7.5%
(a) Annual rate of interest will be equal to 7.5 %
(B) As we know that 1 year = 12 months
And interest is compounded semiannually
1 semiannual = 6 months
So semiannual rate of interest will be equal to
%
(c) 1 quarter = 4 month
So number of period in an year = 3
So rate of interest quarterly
%
(D) Amount when amount is compounded monthly '
So number of period in an year = 12
So rate of interest
%
The Formula to find the Area of a circle using the radius is:

r = 8
So:



And you get about 201.06193
So, the area of a circle with a radius of 8 is about 201.06
Hope this Helps :)
Multiplicity means a large number. or large variety
The answer is 25
x 33 1/3% = 75
75 / 33 1/3
0.3333
(75)(0.333) = 25
24.9999999 rounds to 25
Hope this helps, have a BLESSED day! :-)