Answer:
48
Step-by-step explanation:
no explanation im just big brain
he has 0.6 km left to go, because if you take 1.7 - 0.9 it equals 0.6.
The fact that it takes Earth 365 days to move year in and year out has been known for many centuries. Even before heliocentric and geocentric models were introduced, people were already familiar with the 365 day period. Perhaps Galileo would be the answer, but hasn't been truly defined as to who first observed this.
Mark is 20. 55 - 15 = 40, 40 / 2 = 20. Mark is 20