Osei has read 65 pages of a book. That is 20% of the total number of pages. How many pages long is Osei's book?

A. 13

B. 85

C. 260

D. 325

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The function for the cost of materials to make a muffin is f (x) = 3/4x+3 where x is the number of muffin the function for the selling price of those muffins is g (f (x)) where g (x) = 3x+4 find the selling price of 20 muffins

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Solve the equation 1.2m=0.6