Answer:
A. 77 kilometers per hour
Step-by-step explanation:
Speeds of vehicles are normally calculated in kilometers per hour, meters per hour is too small the measurement and millimeters is even smaller.
The answer to this is 10 39/88.
The answer is 69 , because it just cancels out the numbers
Freezing point of nitro : -210
freezing point of mercury : 171 degrees higher......so we add
-210 + 171 = - 39 c
