Use the simple interest formula to find the unknown quantity
i=$13.98
p=
r+3.6%
t+4 months

Use the simple interest formula to find the unknown quantity

I = $13.98

P=

r = 3.6%

t = 4 months

Using the simple interest formula, the unknown quantity "P" principal = $ 1165

Given that,

I = $ 13.98 which means simple interest = $ 13.98

r = 3.6 %

t = 4 months = years

P = ?

Here we have to find the value of "P" principal sum

The formula for simple interest is given as:

Where "P" is the principal

"n" is the number of years

"r" is the rate of interest

Substituting the values in formula,

Thus the unknown quantity "P" principal = $ 1165

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²