Translate the phrase to an algebraic expression.Five more than x
A. 5x
B. x + 5
C. 
D. 5 - x
Answer: B
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Perform the indicated operations.(n + 10)2
A. n + 100 B. 100n2 + 20n + 100 C. n2 + 20n + 100 D. n2 + 100
Determine whether the given point is a solution of the equation.y = 2x; (-2, -4)
A. No B. Yes
The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).y = x
A. r = sin ? B. r = cos ? C. sin ? = cos ? D. sin ? = - cos ?
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