Answer:
20% of students earned a D
Step-by-step explanation:
I assumed that
17 earned A
14 earned B
4 earned C
9 earned D
20% of the class earned a D
Answer: 4.500
4x - 18 = 2 • (2x - 9)
2 = 0
2x-9 = 0
2x = 9
x = 9/2 = 4.500
its gos up
think it's not hard