B. Because 20 is greter than 18.
It should be 3366. To find the percent increased, multiply 3300 by .02 and add that to 3300, giving you 3366.
Answer:
<em>L = 24,873.6 miles</em>
Step-by-step explanation:
<u>Length of the Circumference</u>
Given a circle of radius r, the length of the circumference, or line surrounding the shape is:

The Earth has a diameter of 7,917.5 miles. The radius is half the diameter:
r=7,917.5/2=3,958.75 miles
Assuming a plane flies around the equator at ground level, the distance it would travel is:

L = 24,873.6 miles
I would say the answer is A and E
It is already in identity.
cos (x - y) - cos (x + y) = 2 sin(x) sin (y)