There are 200 students in the 7th grade class at brookside middle school. of these students, 12% play volleyball and 15% play baseball. four students play on both teams. what is the probability that a student plays either volleyball or baseball?
a.27%
b.25%
c.22%
d.30%

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