391.45 in^2.

d. open circle + moving right from 1/2

derivative function.

Thank you so much for your detailed answer! This really really helps.

The answer is 7.

Please look at the explanation on this website: https://brainly.com/question/17238542

https://www.mathsisfun.com/converting-decimals-fractions.html

lolol

I have updated the question

Thank you!!