Team awesome starts hiking up from base camp which is located at 4400 feet at a steady rate of 600 feet/hour. at the same time, team cool, which has hiked up earlier, leaves the top of the peak at 8900 feet and starts hiking down at a steady rate of 900 feet/hour. after how many hours do the two teams pass each other?

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations