Answer:
10
Step-by-step explanation:
Surplus for Donovan: 10 - 4.50 = 5.50
Surplus for Rudy: 8 - 4.50 = 3.50
Surplus for Mike: 6 - 4.50 = 1.50
Surplus for Royce: 4 - 4.50 = -0.50
Sum of all surpluses: 5.50+3.50+1.50-0.50=10
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