SOLUTION
1)
The maximum profit the florist will earn from selling celebration bouquets can be found at the vertex point of the graph plot of P(X):
![\begin{gathered} A\text{ division on the y-axis of the plot represents \$75} \\ So\text{ the vertex value is \$600+\$75 = \$675} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/s9k0sdgnpesqf9mukip54d0cnnzj3mc5cz.png)
The maximum profit the florist will earn from selling celebration bouquets is $675
2)
The florist will break even when there is no profit or loss.
And looking at the plot on the x-axis, that will be at 20 one-dollar decreases.
3)The interval of the number of one-dollar decreases for which the florist makes a profit from celebration bouquets is (0,20)