Two less than eight times an unknown number is -74 find the unknown number?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.