Write a numerical expression for the phrase and simplify it.The sum of -12 and 7 and 5
A. 7 + 5 - 12; 14
B. -12 + 7 + 5; 0
C. -12 - 7 - 5; -24
D. 12 + 7 + 5; 24
Answer: B
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Find the product.(x - 4i)(x + 4i)
A. x2 - 16 B. x2 - 8x - 16 C. x2 + 8x + 16 D. x2 + 16
Solve the problem.The owners of a candy store want to sell, for $6 per pound, a mixture of chocolate-covered raisins, which usually sells for $3 per pound, and chocolate-covered macadamia nuts, which usually sells for $8 per pound. They have a 
barrel of the raisins. How many pounds of the nuts should they mix with the barrel of raisins so that they hit their target value of $6 per pound for the mixture?
A. 112 lb B. 98 lb C. 91 lb D. 105 lb
Use a percent equation to solve the percent problem.1.5% of what number is 56 ? Round to the nearest whole number.
A. 1 B. 373 C. 3733 D. 37,330
Use a vertical format to find the product.x2 + 5x + 2
A. 6x3 + 7x2 + 35x + 14 B. 13x5 + 37x2 + 35x + 9 C. 6x3 + 37x2 + 47x + 14 D. 13x5 + 65x3 + 26x