Answer:
A. <em>6.12</em>
Step-by-step explanation:
if you mark up 2.00$ with 240% you get 6.80 $
then, 0.68 is 10% of 6.80%
if you subtract 0.68 your answer will be 6.12$
So your answer is A. 6.12$
ANSWER

EXPLANATION
The complex number shown has coordinates (2,-2)
or

The modulus is


The argument is


The polar form is

The first option is correct.