At a dog show, the mean weight of the Norfolk Terriers is 11.5 pounds with a MAD of 2. The mean weight of the Cairn Terriers is 13 pounds with a MAD of 1.8. Express the difference in mean weights as a multiple of the MAD for both dog breeds. Show your work.

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