Sarah earns $20 per hour during the week and $30 per hour for overtime on the weekends. one week she earned a total of $650. she worked 5 times as many hours during the week as she did on the weekends. how many hours of overtime did she have?

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