13÷33
13/33
hope this is what you are looking for
2.5 is the geometric mean
12.5% because you divide the two and get 0.125 then to convert it to a percent multiply by 100 for get 12.5%
53361 + 9.5b = 25.25b
53361 = 25.25b - 9.5b
53361 = 15.75b
53361/15.75 = b
3388 = b <=== the publisher would have to sell 3388 books
Answer:
-n-2
Step-by-step explanation: