courtney reads around 110 words per minute. she procrastinated and now has less than a week to finish her reading assignment. if the book she needs to finish has another 820 pages left and each page has around 350 words, how many hours should she set aside to complete her assignment? i need to show my work

Number of words that Courtney reads per minute = 110
Number of pages left in the book to read = 820
Number of words per page = 350
Then
Total number of words that Courtney
needs to read to finish the assignment = 820 * 350
                                                              = 287000 words
Courtney can read 110 words in = 1 minute
Then
Number of minutes required by
Courtney to read 287000 words = 287000/110
                                                    = 2609 minutes approx
                                                    = 2609/60 hours
                                                    = 43.48 hours
I hope the procedure is clear enough for you to understand. 

I'm a bit puzzled here because they did not provide you with any measures of the other angles, so i am unable to provide a theorem or postulate to support my answer, but i'd say 90 degrees because it looks closer to a right angle than anything.