Estimate the solution of the system of equations. Write the answer as an ordered pair. The graph with X-coordinate marks 0, 2, and 4; Y-coordinate marks 0, 2, 4, and 6. It has two lines which intersect each other at point (1, 2.5). The first line intersects y-axis at (0, 3) and x-axis at (6, 0). The second line intersects y-axis at (0, 45) and x-axis at (2.75, 0).

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