1. What is −12 + |−3| − |−14|?
2. The depth of a local river averages 25 ft, which is represented as |−25|. In January, it measured 5 ft deep, or |−5|, and in July, it was 27 ft, or |−27|. What is the difference between depths in January and July?
3. What is the value of −3 + |−17|?