Its the only question i dont understand me
explain
casey bought sandwiches and bags of chips. each sandwich cost three times as much as a bag of chips. she bought 5 sandwiches for $6 each and spent $42. how many bags of chips b did she buy?

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