To find the unit rate, divide the total number of pages by the total number of hours: 86 pages / 2 hours = <<86/2=43>>43 pages/hour.
To find the total number of pages Marie will have read after 16 hours of reading, multiply the unit rate by the total number of hours: 43 pages/hour * 16 hours = <<43*16=688>>688 pages. Answer: \boxed{688}.
Marie read a total of 86 pages over 2 hours. After a total of 16 hours of reading this week, how many pages will Marie have read in all? Solve using unit rates.
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