Final answer:
To calculate the total amount of taxes withheld, you need to calculate the FICA taxes for social security and Medicare, and add them to the federal income tax amount withheld.
Step-by-step explanation:
This question falls under the subject of Mathematics and is appropriate for High School students.
To calculate the total amount of taxes withheld from Adrian's earnings, we need to calculate the FICA taxes for social security and Medicare, and add them to the federal income tax amount withheld.
To calculate the FICA tax for social security, we multiply Adrian's earnings for January ($6,240) by the FICA tax rate for social security (6.2%) and divide by 100. This gives us $387.68.
To calculate the FICA tax for Medicare, we multiply Adrian's earnings for January ($6,240) by the FICA tax rate for Medicare (1.45%) and divide by 100. Since both the employee and employer contribute to Medicare, we multiply this amount by 2. This gives us $180.48.
The total amount of taxes withheld is the sum of the federal income tax amount withheld ($850.70) and the FICA taxes for social security and Medicare. Adding these amounts together, we get $850.70 + $387.68 + $180.48 = $1,418.86.
Therefore, the total amount of taxes withheld from Adrian's earnings is $1,418.86.