He diagram below represents the circle inside a wrestling mat.

the approximate area of the circle is—

select one:
a. 1,384.74 ft2
b. 263.76 ft2
c. 5,538.96 ft2
d. 131.88 ft2

A. 1,384.74 ft2

Step-by-step explanation:

to formula for area of a circle is π × r2

r2 in here is represents the radius

if we take π as 3.14 then

21^2 × 3,14 = 1,384.74 ft2

54

step-by-step explanation:

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)