What is the 8th term of the geometric sequence with this explicit formula

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

A50% increase followed by 33 1/2% decrease

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.