Answer:
Hey there !
Under the More button, select View Course Structure.
Find the lesson to view the assessment answers. Click Quiz Answers.
All the assessment questions related to the lesson are found in the pop-up window. To view a question and answer, select a question number.
False if that's what you're asking
2.586 is the answer cause you said mathematically
Try writing and solving an equation of proportions:
4 5
---- = ----
6 x
Then 4x = 30, and x = 7.5 (answer)
I'm not 100% sure, but I believe the answer is A. x²-5/4x+1