For this case we have that by definition, the circumference of a circle is given by:

Where:
d: It is the diameter of the circle
They tell us that:

Substituting:

Thus, the circumference of the circle is 55 centimeters.
Answer:
Option B
Can you take a closer pic of this
Assuming you're just computing the volume, i.e.

we should convert to cylindrical coordinates first, setting

so that the volume is given by

which has a value of

.
Answer: width is 12, length is 16
Step-by-step explanation:
A= l*w
l=w+4
A=w(w+4)

factor
(w+16)(w-12)
w= -16 or w=12
width is 12, length is 16
Answer: $30,525.87
Step-by-step explanation:

A = Amount
P = Principal
r = rate
n = number of times it is compounded
t = time
