The combined measure is 180 degrees
16 - option a : 0.83
option b: 0.8
5 bars of soap for $4
17 - the 50 penguins for 795 usd is obviously the better choice
If you need to be more specific just ask me
Answer: No Solutions exist
Step-by-step explanation:
We have the following system of equations

Rewriting the second equation we have:

Now we multiply the first equation by -3 and add it to the second equation

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Equality is not satisfied. Then the system has no solution