Which sequence: an=-2(an-1),a1=4

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Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?