Factor the greatest common factor from the polynomial. Assume any variable exponents represent whole numbers.15xy + 21xz - 6xw
A. 3(5xy + 7xz - 2xw)
B. 3x(5y + 7z - 2w)
C. x(15y + 21z - 6w)
D. x(15xy + 21xz - 6xw)
Answer: B
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Subtract the real numbers. Write any improper fraction as a whole or mixed number where appropriate.
- 
A. 5
B. 
C. 
D. 
Solve the problem.Assume that the price per unit d of a certain item to the consumer is given by the equation 
where x is the number of units in demand. The price per unit from the supplier is given by the equation 
where x is the number of units supplied. Find the equilibrium price and the equilibrium quantity.
A. equilibrium price: $35 per unit; equilibrium quantity: 50 units B. equilibrium price: $50 per unit; equilibrium quantity: 30 units C. equilibrium price: $20 per unit; equilibrium quantity: 50 units D. equilibrium price: $30 per unit; equilibrium quantity: 50 units
Solve the equation.97x+3 = 27
Fill in the blank(s) with the appropriate word(s).
Solve the problem.The polynomial 0.041h - 0.018A - 2.69 can be used to estimate the lung capacity, in liters, of a female with height h cm and age A years. Find the lung capacity of a 20-year-old woman who is 180 cm tall. Round to the nearest liter.
A. 4 liters B. 10 liters C. -5 liters D. 68 liters