To find out how many fashion show tickets need to be sold to generate $4805, you can divide the total amount by the price per ticket.
The formula is:
\[ \text{Number of tickets} = \frac{\text{Total revenue}}{\text{Price per ticket}} \]
Using the given values:
\[ \text{Number of tickets} = \frac{4805}{7.75} \]
Calculating that:
\[ \text{Number of tickets} \approx 619.35 \]
Since you can't sell a fraction of a ticket, you would need to sell at least 620 tickets to generate at least $4805.