Solve the problem.A grocer sold 83 melons for $1.16 each. What was the total amount of the sale?
A. $96.38
B. $96.28
C. $96.29
D. $97.38
Answer: B
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Find the area of the specified region.Inside the lemniscate r2 = a2 sin 2?, a > 0
A. 
B. 0
C. a2
D. ?a2
Solve the problem.The "equilibrium constant" for a chemical reaction is often used to calculate the amounts of chemical substances that are present in a system. For a particular reaction, the equilibrium constant K is given by the formula 
where A, B, and C are the amounts (in arbitrary units) of chemicals a, b, and c. Calculate the equilibrium constant if A = 5, B = 4, and C = 6. Round your answer to three decimal places when necessary.
A. 21,600 B. 1.852 C. 0.463 D. 2.778
Find the length of the brace needed in the illustration. Use the rules for working with measurements.
A. b = 33.3 in. B. b = 35.5 in. C. b = 30 in. D. b = 34.4 in. E. b = 45.6 in.
Find the perimeter of the polygon.
A. 104 m B. 88 m C. 118 m D. 100 m