Radius is half of the diameter so the radius of 4 is 2
The population was 5,000 five hours ago!!

what is b? from the first equation in the system, y + 2 = b.
Answer:
<h2>D) - 9/7</h2>
Hope this will help you lot.
Answer:
C) supplementary angles
D) straight angle
Step-by-step explanation:
There is a straight line, and when an angle is a straight it means its 180 degrees which makes it a supplementary angle and a straight angle.
There are no angles that are 90 degrees so its not complementary or a right angle.