Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1
A. 
B. - 
C. -14
D. -49
Answer: A
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Perform the indicated operations.-3ax6(-11ax6 + 8x5 - 2a)
A. 33a2x12 + 24ax11 - 6a2x6 B. 33a2x36 - 24ax30 + 6a2x6 C. 33a2x12 - 24ax11 + 6a2x6 D. 33ax12 - 24ax11 + 6ax6
Solve the problem.As Sunee improves her algebra skills, she takes 0.9 times as long to complete each homework assignment as she took to complete the preceeding assignment. If it took her 70 minutes to complete her first assignment, find how long it took her to complete the fifth assignment. Find the total time she took to complete her first five homework assignments. (Round to the nearest minute.)
A. 41 min; 241 min B. 46 min; 287 min C. 46 min; 241 min D. 41 min; 287 min
Simplify the expression. All exponents should be positive integers.(4x-3y5z-7)-2
A. 
B. 
C. 
D. 
Determine whether A = B, A ? B, B ? A, A ? B, B ? A, or if none of these applies.A = {x | x ? N and x > 9}B = {x | x ? N and 2 < x ? 9}
A. A ? B B. None of these C. B ? A D. A ? B and A ? B