Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.The national debt of a country is 
and the population is 4,620,000. What is the debt per person? Write answer in standard notation.
A. $600
B. $6000
C. $60,000
D. $128,066,400
Answer: B
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Solve the problem.A boat has a capacity of 3000 pounds. If a passenger averages 160 pounds, and a piece of cargo averages 50 pounds, write an inequality that describes when x passengers and y pieces of cargo will cause the boat to be overloaded. Graph the inequality. Because x and y must be positive, limit the graph to quadrant I only.
A. 160x + 50y < 3000
B. 160x + 50y ? 3000
C. 160x + 50y > 3000
D. 160x + 50y ? 3000
Find the value of df-1/dx at x = f(a).f(x) = 
x + 6, a = -3
A. 
B. 2
C. 
D. 6
Solve the square root equation.
A) There is one positive solution and one extraneous root.
B) The sum of the solutions is 11.
C) There is one negative solution and one extraneous root.
D) There are two positive solutions.
E) There are two negative solutions.
Collect like terms.
x + 
y - 
x - 
y + 2
A. 
x + 
y + 2
B. 
x + 
y + 2
C. 
x + 
y + 2
D. 
x + 
y + 2