Answer:
Step-by-step explanation:
Always True
Positive integers are rational numbers. Adding two rational numbers produces another rational number.
Lo siento is a Spanish word for sorry.
Answer:
* is 
Step-by-step explanation:
(7x + 3)(x + 3)
=
+ 24x + 9
Answer:
Step-by-step explanation:
3x - 1 +x = 2x-1