20 hours, I believe. You're just dividing 300 by 15.
I think se cuz it still has sunlight but it’s not too close
18 - 7x = -20.52.5 = 7xx = 5/14 (c)

is equation of circle which have radius equal 5 and center in (0,0) point
Answer:
AB = 6.4
Step-by-step explanation:
Assuming that AB + BC is AC, then we can say the following:
AB + BC = AC
AB + 6.8 = 13.2
AB + 6.8 + -6.8 = 13.2 + -6.8
AB = 6.4
Cheers.