Reduce fraction prime factorization

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

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