Answer:
 Deduction for social Security tax is $ 4976.864 and deduction for Medicare tax is $ 1163.944 .
Explanation:
As given 
Marika Perez’s gross biweekly pay is $2,768. 
Her earnings to date for the year total $80,272.
 Social Security taxes if the rate is 6.2% . 
6.2% is written in the decimal form 

= 0.062 
 Social Security taxes = 0.062 × Gross pay 
 = 0.062 × 80272 
 = $ 4976.864 
As given 
Amount is deducted for Medicare is 1.45% . 
1.45% is written in the form of decimal 

= 0.0145 
Medicare tax = 0.0145 × Gross pay 
 = 0.0145 × 80272 
 = $ 1163.944 
Therefore the deduction for social Security tax is $ 4976.864 and deduction for Medicare tax is $ 1163.944 .