A) The first because it features a valency of +1.
b) The seventh because it has a valency of -1.
c) The third as it contains a valency of +3.
Define x as the distance in miles. This scenario can be expressed with the inequality 0.5x + 3 < 10, where x corresponds to the miles traveled. To solve this, begin by subtracting 3 from each side, followed by dividing everything by 0.5. The outcome indicates x < 14, meaning Carl can cover less than 14 miles, though he is 15 miles away from his destination; therefore, he will opt for a bus instead.
If the clock loses 0.1 hours every day, it will take 120 days to lose a total of 12 hours. Counting 120 days from May 17 leads to September 14.
