Determine whether the statement is an expression or an equation.7(5 + 7) = 82 + 2(1)
A. Equation
B. Expression
Answer: A
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Provide an appropriate response.For the joint-cost function c = 3xy + 5x + 2y + 6000 (in $), determine the marginal costs 
and 
when 
and y = 20.
What will be an ideal response?
Evaluate.
A. 68,880 B. 2,686,320 C. 1722 D. 118,030,185
Write a system of equations for the problem, and then solve the system.The two largest oil spills together released 290 million gallons of oil into the oceans. The smaller of the two released 78 million gallons less than the larger of the two. How many million gallons did the largest and the smallest oil spills release?
A. Largest oil spill: 184 million gal; smallest oil spill: 106 million gal B. Largest oil spill: 212 million gal; smallest oil spill: 184 million gal C. Largest oil spill: 212 million gal; smallest oil spill: 106 million gal D. Largest oil spill: 106 million gal; smallest oil spill: 131 million gal
Solve the problem.Find the volume of the circular cylinder below. Use 3.14 for ?.
A. 285.74 cm3 B. 500.045 cm3 C. 142.87 cm3 D. 2000.18 cm3