Martha earned a gross pay of $1,215.60 last week. Using the fact that Social Security tax is 6.2% of gross pay, determine the amount of Social security tax deducted from Martha’s gross pay.

Social Security tax is 6.2% of gross pay, so multiply $1,215.60 by 0.062: $1,215.60 × 0.062 = $75.3672. Rounded to the nearest cent, the deduction is $75.37, which is choice C.

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