Step 1. Simplify brackets

Step 2. Simplify
13
Done! :)
Your answer is A. 13 Hope this helps!
Answer:
Cat.
Explanation:
Introduction of cat can control the population of mice on the island more effectively as compared to the introduction of disease because the introduction of disease can cause damage to other population of that environment that adversely affected the ecosystem. Cat feeds on mice that act as a controlling agent in this ecosystem that will leads to decrease as well as controls the population from increasing in order to cause damage to the environment.
Answer:
A fault is found that cuts through lower rock layers but not those above it. What can most likely be concluded? The fault is the same age as the layers it cuts through, and the same age as the layers above it.
Explanation:
the highest humidity would be texas i know that for sure but on here i'd say it is arizona
Survival of the fittest is talking about when you have traits that will help you, you are more likely to live rather than not having those traits. For example, a bird that swims a lot has webbed feet so it has a better chance of surviving then a bird who does not have webbed feet