Solve using the addition principle.4 = b - 4
A. 8
B. 0
C. -8
D. 0
Answer: A
Mathematics
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Solve.Choose the closest estimate of the length of a football field.
A. 1000 cm B. 90 m C. 2 km
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Find the product.(x + 9y)(x - 9y)
A. x2 - 18y2 B. x2 + 18xy - 81y2 C. x2 - 81y2 D. x2 - 18xy - 81y2
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Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.The national debt of a country is $46,900,000,000 and the population is 6,700,000. What is the debt per person? Write answer in standard notation.
A. $314,230,000 B. $7000 C. $700 D. $70,000
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Decide whether the given number is a solution of the given equation.Is 8 a solution of y + 12 = 20 ?
A. Yes B. No
Mathematics