Katie has read 32 percent of a book. if she has read 80 pages, how many more pages does katie have left to read?
a 40
b 170
c 200
d 250

You need to divide 80 by 0.32 (this is your percent) to find the total amount of pages, which is 250. now subtract 80 from 250 to find the remaining pages, which is 170. The answer is B.
 

You dive 80 by 32 and 32 which means that ever 2.5 pages is 1 percent of the book so you multiple by 100 and get 250 pages

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )