Simplify.
A. 
B. 
C. 
D. 
Answer: D
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Find the product.(x2 + 9)2
A. x4 + 81 B. 81x4 + 18x2 + 81 C. x2 + 81 D. x4 + 18x2 + 81
A matrix has an inverse if and only if its determinant does not equal 0. Determine whether the given matrix has an inverse.
A. No B. Yes
Solve the problem.The city bridge has 5 lanes, all carrying equal numbers of cars. If 145 cars drive across the bridge, how many cars cross in each lane?
A. 34 cars B. 29 cars C. 150 cars D. 30 cars
Solve the problem.The manager of a candy shop sells chocolate covered peanuts for $5 per pound and chocolate covered cashews for $14 per pound. The manager wishes to mix 80 pounds of the cashews to get a 
mixture that will sell for $7 per pound. How many pounds of peanuts should be used?
A. 360 lb B. 180 lb C. 280 lb D. 140 lb