Select the gcf of these numbers. 25 · 5· 11 and 23· 52 · 7 a 2^2 · 3
b.2· 11^2
c.3^2
d.2^3 ·5e. 13 · 19^3 ·23^2

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