If i had existed alone and independent of all other[s], so that i had of myself all this little whereby i participated in the perfect being, i should . . be infinite, eternal, immutable, omniscient, almighty—in fine, to possess all the perfections which i could observe in god. (chapter 4, paragraph 6; discourse on method) based on its prefix and use in this context, the word immutable most likely means .

In this context the word would mean lasting. This text is describing something/someone infinite.

it exposes the hypocrisy of religion and christian supporters of slavery

halibut, flounder, tuna, and trout are all fish. so your first answer is 1.) fish. and since fish is edible, your next answer would be 3). edible

to describe those fishes more thoroughly, some of those fishes live in fresh water, and some of the fishes live in salt water, and that is not a thing that they all have in common. the question is asking what is common with all of the fish, so answer choices 2). fresh water and 4). salt water are not right.