Answer:
Last month her gross income was $1909.60.
Explanation:
Given:
Sophia earns commission selling cell phones contracts. Last month she sold 341 cell phones contracts worth a total of $38,192.
She earns a 5% rate of commission.
Now, to find her gross income last month.
Sale of last month = $38,192.
Rate of commision = 5%.
So, the commision is:
Commission = 5% of $38,192.



Therefore, last month her gross income was $1909.60.