It opens downwards so it looks like this “n”. That is because a in the formula is a negative number in this situation
David can read 50 pages in 50 minutes.
(50 pages)/(50 minutes) = 1 page/minute
Since David reads 1 page per minute,
in 80 minutes David can read 80 pages.
Multiple the 2 numbers and you should get 0.594
Explanation is the pic
It is answer is choice d in my opinion
