I think that the answer is D
Answer: 4
Step-by-step explanation:
The power of the brain
Answer: The required probability is 
Step-by-step explanation:
Since we have given that
Number of spruce tree = 20
Number of maple tree = 50
Total trees = 70
We need to find the experimental probability that the next tree Colleen to get a spruce tree.
So, the probability would be :

Hence, the required probability is 
Answer:
-3
Step-by-step explanation:
4 (h+1.5)=-6
4h+6=-6
4h=-12
h=-3
Answer:
42
Step-by-step explanation: