A 90% represents the letter grade A-. The following chart is a good indicator of percentages to letter grades, but keep in mind that schools may have different guidelines.
A+ = 97 and up (Some schools do not recognize an A+ letter grade)
A = 93-96
A- = 90- 92
B+ = 87-89
B = 83-86
B- = 80-82
C+ = 77-79
C = 73-76
C- = 70-72
D = 69-60
F= below 60
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Khnum
Only 15 percent of the land in China is able to be cultivated. Of this land accounts for only 10 percent of the land in the world that can be cultivated.
yes thats what the 6th grade social studies book
I think it was around 25%