EXPLANATION
In order to obtain the number of units, she sold in the next quarter, assuming this variable is called x, we must apply the following relationship:
[tex]x=744-(0.11*744)[/tex]Multiplying numbers:
[tex]x=744-81.84[/tex]Subtracting numbers:
[tex]x=662.16[/tex]In conclusion, the solution is 662 units.