Final answer:
Mary Strand's gross earnings for the pay period are $665, and after accounting for FICA and federal income tax withholdings, her net pay is $529.13.
Step-by-step explanation:
To compute Mary Strand's gross earnings for a January pay period where she works 45 hours, we need to consider her regular hourly wage and overtime pay. Mary's regular earnings for 40 hours at $14 per hour is $560 (40 hours * $14/hour). Her overtime earnings for the additional 5 hours at $21 per hour is $105 (5 hours * $21/hour). Therefore, her total gross earnings would be $665 ($560 + $105).
The net pay is calculated by subtracting Mary's taxes and other deductions from her gross earnings. First, we calculate the FICA tax, which is 7.65% of her gross earnings: $665 * 7.65% = $50.87 (rounded to two decimal places). Her federal income tax withholding is $85. Therefore, her total deductions are $135.87 ($85 + $50.87). Subtracting this from her gross earnings gives us her net pay: $665 - $135.87 = $529.13.
So, Mary Strand's gross earnings for the pay period are $665, and her net pay is $529.13 (rounded to two decimal places).