7cos(x) + 4cos(-x) 4.Find all solutions to the equation in the interval [0, 2Ï]. Mrs. Jones earns $12.50 an hour at her job. She cannot work more than 40 hours in one week because her employer cannot pay overtime. She makes at least 350 dollars a week at her job while working a variety of hours per week.
In The Hobbit, the dwarves names were Fili, Kili, Oin, Gloin,  Thorin Oakenshield, Dwalin, Balin, Bifur, Bofur, Bombur, Dori,  Nori, and Ori, so there were 13.
6 At the start of the book Bilbo is visited by several Dwarves and Gandalf. Thorin Oakenshield and Gandalf arrive with the last group of 'visitors'. How many Dwarves came with Thorin and Gandalf?