X=13 i believe!! hope it helps <3
Answer:

Step-by-step explanation:
we know that
The area of the circle is equal to

where
D is the diameter of the circle
Solve for D
That means-----> Isolate the variable D
Multiply both sides by 4 to remove the fraction

Divide both sides by π

square root both sides

Rewrite

Simplify

Answer:
I think the answer is Option D, 135 degrees.
Since the angles of all of the octagon combined is 1080, divide that by 8 to get 135 which means that all 8 angles are 135 degrees.
Answer:
368.47
1686.56
Step-by-step explanation:
effective rate: .05/12=.00416666667
payment=x

Interest:
368.47*48-16000=1686.56
Answer:
15x3= - 3 =2
Step-by-step explanation: