To find the number of degrees that represent rent in a circle graph, you can use the following formula:
\[ \text{Degrees for rent} = \left(\frac{\text{Amount spent on rent}}{\text{Total expenses}}\right) \times 360 \]
In your case, Sara spent $1980 on rent out of a total of $6600. Plugging in the values:
\[ \text{Degrees for rent} = \left(\frac{1980}{6600}\right) \times 360 \]
Now, calculate the fraction:
\[ \frac{1980}{6600} = 0.3 \quad (\text{since } 30% = \frac{30}{100} = \frac{3}{10}) \]
Now, multiply by 360:
\[ \text{Degrees for rent} = 0.3 \times 360 = 108 \]
Thus, rent covers 108 degrees of the circle graph.