14. B (4, -2)
15. I am not exactly sure about this one but I would say either A or B.
Answer: 8x
Step-by-step explanation: add it normally but carry the x
In this case you would set it up as

(180 represents the degree of the triangle)
Add up like terms

Subtract 130 to the other side (180-130)

Divide 10 to the other side ( 50/10)
.

Hope this was clear :)
Answer:
63
Step-by-step explanation:
first yoy need to put the biggest number on the top then multiply each number
En matemáticas, una transformación de sucesiones es un operador que actúa en un espacio determinado de una sucesión.