Divide and simplify.
A. -12x9 + 9x3
B. 12x12
C. 3x6 - 36x6
D. 3x6 + 9x3
Answer: D
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Middletown is designing a new high-speed rail system to connect Downtown, the Airport, and the Mall. The elevated tracks for the rail system will run along the existing roads, that run on a grid as shown below. In addition, a central switching station must be located at one of the intersections.
What is the length of the optimal network?
A. 7 blocks
B. 8 blocks
C. 5 + 
blocks
D. 9 blocks
E. none of these
The abacus in the figure has "five" playing the role of "ten." (a) What number is represented on this five-bead abacus? (b) How would this number naturally be recorded?
A. (a) 56, (b) 111 B. (a) 980, (b) 12,410 C. (a) 96, (b) 341 D. (a) 196, (b) 1241
Multiply. Write the answer in simplest form.
? 0
A. 
B. 
C. undefined
D. 0
Find the degree of the polynomial function.g(x) = -11x8 - 9
A. -11 B. 8 C. 9 D. 0