Set up the proportion and then solve for x (Redraw and label the 3 similar triangles to start)

Is there an x intercept in the equation 60*1.15^x

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

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.