Answer:
the 3rd option is the answer
Step-by-step explanation:
I hope the attached file is self-explanatory
Answer:
1,280
The dimensions are 5 by 4
Step-by-step explanation:
You multiply 20 and 16 then, divide 0.25 then you get 1,280
Answer
12.56.. I think
umm you haven't said which part of the circles is shaded but I assumed that it's the gap between the two circles

You can just take it
Hope I helped!
Answer:
Step-by-step explanation:
81x² - 6x