Sam is thinking of retiring from his job after many years of faithful service. During the last 35 years at his job, his annual salary averages to $37,991. Every month, his bills total $1,755. How much money would Sam need each month to supplement his monthly Social Security benefit (assuming his annual benefit is 42% of his salary average) and still be able to pay his bills? a. At least $81. 23 b. At least $425. 32 c. At least $1,410. 92 d. At least $3,019. 67.