Rebecca's current math grade is an 83. She did 3 test corrections.

unit 2 retake She scored a 100% the weight of this test is: 9%
unit 5 retake She scored 82% the weight of this test is: 9%
unit 6 retake She scored 90% the weight of this test is: 9%
how much would her grade go *up* by?

To calculate how much Rebecca's grade would go up by, we need to find the weighted average of her test scores and add it to her current grade.

Weighted average = (Unit 2 retake * weight) + (Unit 5 retake * weight) + (Unit 6 retake * weight)
= (100% * 0.09) + (82% * 0.09) + (90% * 0.09)
= 9 + 7.38 + 8.1
= 24.48

Rebecca's new grade = Current grade + Weighted average
= 83 + 24.48
= 107.48

Therefore, her grade would go up by 24.48 points.