Final answer:
The federal income tax withheld from Luisa Garza's weekly gross pay of $545, who is single with two allowances, is $51 according to the provided tax table.
Step-by-step explanation:
To calculate the federal income tax withheld from Luisa Garza's pay, we'll use the weekly payroll period table provided for single persons. Garza's gross pay is $545, and she claims two allowances.
According to the table, for a single person earning at least $540 but less than $550 with two allowances, the amount withheld for federal income tax would be $51.