The correct translations for " He sings better than he plays" would be canta mejor que toca (option A) As it is a comparison in which he sings (canta) better (mejor) than he plays (toca).
Option B would not apply because the 2nd verb is not "play" but "try."
option C and D present the comparison with the adjective Worse which means peor and D also presents the verbs in different order,
1. Juan es policía
2. Yo soy una persona feliz
3. José y Paco son Chilenos
4. Ellos no son de Perú
5. Ellos son de Uruguay
The main idea of the paragraph is the use of nicknames
My friend Jose from Uruguay is thirteen years old. Jose's nickname is Pepe. He's got green eyes. My little brother is called Jesus and has the nickname of Sito. He's very creative and patient. I have no nicknames, but the mother of my friends in Bolivia has the nickname of my son or M'hija for the children.
14.
6x + 6 - 2x - 1 = x + 15 +x +16
4x + 5 = 2x + 31
-5 -5
4x = 2x + 26
-2x -2x
2x = 26
— —
2 2
x = 13
