2) Find the axis of symmetry of y = 2(x - 5)^2 + 3 O a. y=-3
O b. X=5
O c. x = -5
0 d. y = 3

posting several questions, taking math test lol

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