Find the LCM of the given numbers.4, 5
A. 10
B. 9
C. 4
D. 20
Answer: D
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Factor the perfect square.b2 - 32b + 256
A. (b + 16)2 B. (b + 16)(b - 16) C. (b - 16)2 D. Prime
Perform the operations.11 + (4 ? 9) - 28
A. -4 B. -285 C. 19 D. 107
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 problem.What is the minimum force required to prevent a ball weighing 24.0 lb from rolling down a ramp which is inclined 27.2° with the horizontal?
A. 21.3 lb B. 5.5 lb C. 10.7 lb D. 11 lb