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Based on the percentage of students making the other grades, the number of students Ms. Webb has is 110 students.
= 100% - Percentages of other grades
= 100% - 50% - 20%
= 30%
30% of students made A.
The number of students can be found by the formula:
= Number of students with A / Percentage of students with A
= 33 / 30%
= 110 students
In conclusion, there were 110 students.
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