If Massachusetts has a sales tax of 6 percent and New Hampshire has no sales tax, how much money can be saved by buying a $1,000 television in New Hampshire? $6 $16 $60 $600

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Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.