Help please please please

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

In the rectangle below ac=30 units what is de

Look at the hyperbola graphed below. the hyperbola gets very close to the red lines on the graph, but it never touches them. which term describes each of the red lines? o o o o a. asymptote b. directrix c. focus d. axis