It's a little hard to tell without more information as to what you are learning, but could it be the Golden Ratio? I believe it might have been discovered in ancient Greece...
Answer:
3. Hardness
4. Streak
5. Density
6. Crystal
Step-by-step explanation:
big brain
Answer:
75%
Step-by-step explanation:
as a percent = 75%, or 0.75 in decimal form.
The work become much simpler if you do it in a table. Hope this helps!!