Answer:
4 is D, 5 is D, 6 is A, 7 is C
Step-by-step explanation:
just do da math
The Formula to find the Area of a circle using the radius is:

r = 8
So:



And you get about 201.06193
So, the area of a circle with a radius of 8 is about 201.06
Hope this Helps :)
B 6.44 because 6.4 is equal to 6.40 and in between 6.40 and 6.60 there is 6.44.
Answer:

The file includes the input of your equation, comment if the equation you input is a mistake.