Answer:
1. The overall change is -150 feet. 50 times 5 is 150 feet, and the mountain climber descended. Therefore, the change is -150 feet in elevation.
2.The required integer is -18
Explanation:
2. The temperature dropped 3°c every hour,
So, the change in temperature every hour = -3°C
Total number of hours for which the temperature were changed = 6,
Thus, the total change in temperature = change for an hour × total number of hours,
= -3° × 56
= -18°
Hence, the integer that represents the change in temperature is -15.