Answer:
d = 19.9m
Step-by-step explanation:
c² - a² = b²
24.7² - 14.5² = d²
610.09 - 210.25 = d
610.09 - 210.25 = 399.84
√399.84 = 19.9
10:40 AM
10 + 50 = 1 hr + 1hr = 2hrs 12:40 - 2 hrs = 10:40 AM