Which of the following represents the domain of the graph?

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

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2