EASY ALGEBRA! HELP PLEASEEE <3 Fill in the blank with a number to make the expression a perfect square.

v²-14v+__

(fill in where the underscore is)
I know the answer is 49, But please just work out the problem!!

With math question will mark brainliest question in the pic.

What is the relationship between all triangles that can be drawn given the same three angles

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