$[tex]9.36[/tex] it is normall price which mean its 100%
[tex]150[/tex]%[tex]*[/tex]$[tex]9.36[/tex] it price with mark up
And we know that [tex]150[/tex]%[tex]=1.5[/tex]
so:
[tex]9.36*1.5=14.04[/tex]
Answer:
This school will sell 1 dozen roses for $ [tex]14.04[/tex]