Final answer:
Sandra Powers' gross pay from her work at a clothing boutique would be $325, calculated by taking the greater value between her guaranteed minimum salary of $320 and her commission of 6.5% on $5,000 in sales.
Step-by-step explanation:
The student is asking how to calculate the gross pay of Sandra Powers, who works in a clothing boutique. To determine Sandra's pay, we compare her guaranteed minimum salary with the commission she earns from sales. Sandra's minimum weekly salary is $320, and she earns a commission of 6.5% on her sales. For sales of $5,000, her commission would be 6.5% of $5,000, which is $325. Since $325 (commission) is greater than $320 (guaranteed salary), her gross pay for the week would be $325.