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| revprev | Admin | May 6'23 at 23:09 | +50 | m | |
| revcur | Admin | (Created page with "'''Solution: B''' Let X and Y be the miles driven by the two cars. The total cost, is then <math display = "block"> C = 3(X/15 + Y/30) = 0.2X + 0.1Y. </math> C has a normal...") | May 6'23 at 23:04 | +413 |