What fraction of the total # of students earned at least a c? include small explanation on how you did it.

6/30 or 3/15.Add all the number together and then you get 6/30 because 6 of them were c.Then simplify it.Also, I like your picture |-/

6/30 or 1/6 students earned at least a C. So basically you add up all of the students that earned different grades. 8+10+6+3+3. Which gives you 30. Then 5 people got a C so you put 5 over the total amount of students. 5/30. Lastly, you simplify to 1/6 by dividing by 5 on both sides.

2.4+3.2t. you get the answer by adding the ones with variables and ones without