Here are some questions that I have been struggling with for quite some time, mostly because I don't understand how to begin to work them out.
Simplify if possible. If the expression cannot be simplified, write "not possible" as the answer.
I'm leaning toward not possible with this one, but it doesn't hurt to make sure.
Solve for the unknown and check your work.
I used Microsoft math to get the answer, .
However, I've yet to figure out how to reach that answer. I'm guessing that saying: won't really cut it.
Same as above, I used Microsoft math to get the final answer, but have not quite worked out how to reach said answer: .
From looking at it I can see why 25 is the answer, but I don't think anyone would accept "it looks like 25 is a good answer"--even if I'm correct.