A group of friends recorded the time it took to ride their bikes around the park. The scatter shows their result with the line of best fit. Using the line of best fit, which is the closest to the numbers of minutes it would take to complete 9 laps?​

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