Answer: 
Step-by-step explanation:
Given
The diameter of a circle is 
So, the radius is 
The circumference is given by 
Insert the values

Thus, the circumference of the circle is
Where you are. The moon or the earth is the independent variable
Answer:
Sophia can drive 3672 miles using 18 gallons of gas.
Step-by-step explanation:
204 x 18 = 3672.
100 - a = 64
36 = 12b
h = 36/9