From a point on a straight road, pablo and elena ride bicycles in the same direction. pablo rides at 9 mph and elena rides at 13 mph. in how many hours will they be 38 mi apart? pablo and elena will be 38 miles apart in hrs. (type an integer or a simplified fraction.)

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