I did the practice exam from this booklet http://www.act.org/aap/pdf/Preparing-for-the-ACT.pdf recently and theres a couple of questions where I really don’t understand the answer.
English
Q21: This one is really confusing me. The answer says its A but I thought it was C. My reasoning was that proposals was plural and when it says something “took decades to resolve many political…” it’s referring back to the proposals and since proposals is plural you should use those instead of that right?
Q22: For this one I really didn’t think any of the answers worked so my best guess was G because it the name of the engineer is extra information but the answer says it’s J. The sentence just sounds so awkward like a run on sentence if you use J. Can anyone explain?
Q26: I think I know how this one works but I just want to confirm. So the correct answer was G. So tell me if my reasoning is correct. Since the underlined section describes the word public and public is the object of the sentence, the description phrase has to use whom instead of who? This question was throwing me off because the underlined section seems like the subject because it has a verb after it which is “were skeptical…”
Math
Q45: I think I know how to do this one but I’m not sure if I just got a lucky guess. So what I did was I just found the area of the whole circle. Since the radius is 1, the area of the whole thing is 3.14 (pi). And it’s asking for the area of just the stained glass so I know the answer must be less than 3.14 so the only answer that’s less than that is A which is 3.1. But it just doesn’t seem reasonable because if you look at the picture, the unstained part should be way more than 0.04. Is my reasoning correct or did I just get lucky?
Q59: This question was the hardest one out of the whole thing. I sat and stared at it for 20 minutes after the test and still couldn’t get it. So my reasoning was that it says that -3 is the only possible value for x so I plugged in -3 for x and got
9 - 3m + n = 0
Solving for m you get
m = 3 + (n/3)
So since it says m and n must be integers, I began plugging in all the answers into the equation for m. When I did that I could only eliminate answer A because when you plug it in, n would have to equal 0 which is not an integer. But when I plug in the other answers, -3, 6, -6, and 9, they all seem to work. They all make the equation possible because m and n would be integers with any of these numbers. So the correct answer was 6. Anyone know how to do this question?
I highlighted them. Can anyone explain them?