PLEAS HELP! WILL MARK BRAINLIEST! I HAVE PICTURES, Russian- ПОЖАЛУЙСТА ПОМОГИ! БУДЕТ ОТМЕТИТЬ МОЗГОВЫЙ НЕ ВАЖНО ЧТО! У меня есть фотографии

Spanish-¡POR FAVOR AYUDA! ¡MARCARÁ LO MÁS CEREBRAL SIN IMPORTAR QUÉ! TENGO FOTOS

French- VEUILLEZ AIDER! MARQUERA BRAINLIEST PEU IMPORTE QUOI! J'AI DES PHOTOS

This is not a part of the question. This is for people who speak different languages. Thank You.

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true