Answer:
s = 2
Step-by-step explanation:
I'll be using the substitution method.
Answer:

Step-by-step explanation:
Given



Required
Find y

So, the expression becomes

Collect like terms


Collect like terms


Make y the subject


Answer:
m (2,6), L (3, -6), J (-6, -9), K (-1, -9)
Step-by-step explanation:
Where is the question and what is it?
Answer:
i don't know a counterexample for the first one
A counterexample for the second one is a leaf bug
A counterexample for the third one is a trapezoid, rectangle, rhombus