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.
1:
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.
2:
Solve for the unknown and check your work.
(a):
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.
(b):
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.
Thank you!