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Hello! I need help with a problem at math: lim x->infty (-1+e^x)/e^x? How many licenses is in a glass of water? Were there ever human alien hybrids that lived on earth? The perimeter of rectangle MNPQ is 80 in and the ratio MN:MQ = 3:5. Find the area of MNPQ.? How to determine if cos(225degrees) is greater than zero, less than zero etc..?