Answer:A
Step-by-step explanation:
For SSS you need all sides
Respuesta para tu pregunta jaja
Answer:

Kelly is correct.
Step-by-step explanation:
One person is able to plant 4 trees
Let x be the number of people
y be the number of trees
The situation is represented by

5 people are able to plant 20 trees

So, the situation is represented by 
Hence, Kelly is correct.
Answer:
-4x+161
Step-by-step explanation:
why-
because it is correspondoing so that is the answer