Answer:
none
Step-by-step explanation:
Answer:

Step-by-step explanation:
Let
be the shaded area and
be the unshaded area, then we know that
(1). 
and
(2).
We solve for
in the first equation and get:

and put this into the second equation and get:




Answer:
yup this explanation is correct you will get good grade
To write the number is standard form we need to move the decimal point six times to the right, then:

therefore the answer is b.