Multiply.(ab + 12)(ab - 12)
A. a2b2 + 24ab - 144
B. a2b2 - 144
C. a2b2 - 24
D. a2b2 - 24ab - 144
Answer: B
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Find the indicated probability.The manager of a used car lot took inventory of the automobiles on his lot and constructed the following table based on the age of his car and its make (foreign or domestic): Age of Car (in years)
If a car is selected at random from the lot, what is the probability that it is either a foreign car or less than 3 years old? Give your answer as a fraction.
A. 
B. 
C. 
D. 
Provide an appropriate response.When comparing markup based on cost to markup based on selling price:
A. none of these B. markup based on cost provides more profit for the business C. when using markup based on selling price, cost can never be determined D. all else being equal, markup based on cost will result in a higher markup rate
Solve.x2 + x + 3 = 0
A. -1 ± i
B. 
C. 1 ± i
D. 
Solve.How much pure acid should be mixed with 2 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 3 gal B. 5 gal C. 1 gal D. 8 gal