The pie chart and bar graph show the number of different types of flowers sold in a particular week. The number of flowers sold is not shown on the scale. Draw the bar representing the number of stalks of carnations that were sold in that week in the bar graph above.

1. Determine the fraction of the pie chart for Roses and Orchids.

The sectors for Roses and Orchids are both $90^\circ$, which is a quarter of the pie chart.
Fraction for Roses = $\frac{90}{360} = \frac{1}{4}$
Fraction for Orchids = $\frac{90}{360} = \frac{1}{4}$

2. Determine the fraction of the pie chart for Carnations.

Fraction for Carnations = $1 - \frac{1}{4} - \frac{1}{4} - \frac{1}{8} = 1 - \frac{2}{8} - \frac{2}{8} - \frac{1}{8} = \frac{3}{8}$

3. Relate the fractions to the bar graph heights.

From the bar graph, Sunflowers ($\frac{1}{8}$ of the total) correspond to 3 grid intervals.
Carnations represent $\frac{3}{8}$ of the total, which is $3 \times \frac{1}{8}$.
Therefore, the height of the bar for Carnations should be $3 \times 3 = 9$ grid intervals.