at the fundraiser seventh graders are selling T-shirts , hats and magnets. they have twice as many T-shirts as hats and 100 more magnets and T-shirts. ( let h represent the total number of hats. Write an expression in terms of h for the total number of items they have to sell.)

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