Solve. Express the answer in scientific notation to two decimals unless requested otherwise.The national debt of a small country is $7,280,000,000 and the population is 2,660,000. What is the amount of debt per person?
A. $2.74 × 103
B. $27.40
C. $2.74
D. $2.74 × 106
Answer: A
Mathematics
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Provide an appropriate response.Perform the operations and simplify: x(x + 4) - (x + 2)(x - 1)
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the volume of the indicated region.The region bounded above by the sphere 
and below by the cone 
A. 72?(2 - 
)
B. 54?(2 - 
)
C. 54?(2 - 
)
D. 72?(2 - 
)
Mathematics
Solve the problem.The sum of a student's three scores is 229. If the first is 20 points more than the second, and the sum of the first two is 4 more than twice the third, what was the first score?
A. 67 B. 55 C. 75 D. 87
Mathematics
Solve the equation.
= 3
A. {10} B. {8} C. {9} D. {16}
Mathematics