Use scientific notation to solve the problem.The national debt of a small country is $7,880,000,000 and the population is 2,183,000. What is the amount of debt per person?
A. $3.61 x 106
B. $36.10
C. $3.61
D. $3.61 x 103
Answer: D
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Simplify the expression.
+ 
A. 
B. 
C. 
D. 
Solve.A rope 10 feet long is cut into two unequal pieces. Each piece is used to form a square. Let x represent the length of the shorter piece of rope. Write a function A(x) that expresses the total area enclosed by the two squares.
A. A(x) = 100 - 20x
B. A(x) = 
C. A(x) = 
D. A(x) = 2x2 - 20x + 100
Write the number in decimal notation.5 × 104
A. 0.0005 B. 50,000 C. 0.00005 D. 500,000
Convert the polar equation to rectangular form. Identify the curve.r = -6
A. x + y = 36; a line with slope -6 and y-intercept 0 B. x2 + y2 = 36; circle centered at (0, 0) with radius 6 C. x + y = 6; a line with slope -6 and y-intercept 0 D. x2 + y2 = -36; circle centered at (0, 0) with radius 6