Final answer:
The medical assistant's gross earnings for the biweekly time period are $871.50
Step-by-step explanation:
To calculate the medical assistant's gross earnings for the biweekly time period, we need to consider two parts: regular hours and overtime hours.
The medical assistant earns a regular rate of $10.50 per hour. For the first 80 hours worked in the two-week period, she will receive the regular rate. For the remaining 2 hours, which exceed 80, she will receive 1.5 times the regular rate.
The calculation is as follows:
Total regular earnings = Regular rate ($10.50) * Regular hours (80) = $840.00
Overtime earnings = 1.5 * Regular rate ($10.50) * Overtime hours (2) = $31.50
Gross earnings = Total regular earnings ($840.00) + Overtime earnings ($31.50) = $871.50
Therefore, the correct answer is C. $871.50.