7.4 Assume that Valley Forge Hospital has only the following three payer groups: Number of Average revenue Variable cost Payer admissions per admission per admission PennCare 1,000 $5,000 $3,000 Medicare 4,000 $4,500 $4,000 Commercial 8,000 $7,000 $2,500 The hospitals fixed costs are $38 million. a. What is the hospitals net income? b. Assume that half of the 100,000 covered live