A square is 3.2 millimeters (mm) on each side. What is the area of the square?
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A. 6.4 mm?
B. 10.24 mm
C. 12.8 mm
D. 32.77 mm

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books