What is the mean of the data?

B, 5.5

Step-by-step explanation:

4+4+4+5+5+6+6+6+6+9=55

55/10=5.5

1/2 cup of oats and 2/3 cup of flour.

Step-by-step explanation:

When multiplying a fraction you use the number over one. In this case each fraction would be multiplied by 2/1. So 1/4 x 2/1 would multiply across to be 2/4 which can be simplified to 1/2 and with 1/3 x 2/1 it comes out at 2/3 which cannot be simplified further.