The answer is B. Testing random samples of wild animals to decide whether they are healthy
Answer:
100 N to the left
Step-by-step explanation:
They have to be equal and opposite to balance, so they will need a force of 100 N to the left
bearing in mind that a solution to a system of equations is where their graph intersect or meets, Check the picture below.
It is not true because if you add in 0 the equation would be 8-4(0)=4(0)
4x0 = 0
so it would be 8-0=0 which doesn't add up.