Identify the unknown amount as the portion, rate, or base.50% of what number is 54?
A. rate
B. portion
C. base
Answer: C
Mathematics
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Use the substitution method to solve the system.3x - 3 = yy - 3x = 3
A. Infinitely many solutions B. (3, 3) C. (0, 0) D. No solution
Mathematics
Find the volume of the indicated region.the tetrahedron cut off from the first octant by the plane 
A. 210 B. 70 C. 105 D. 140
Mathematics
A state map has county lines as shown. If the counties are to be colored and no two counties which share a border can have the same color, what is the minimum number of colors required for this map? Explain your solution.
What will be an ideal response?
Mathematics
Multiply.(7x + 11y)2
A. 7x2 + 154xy + 121y2 B. 49x2 + 154xy + 121y2 C. 49x2 + 121y2 D. 7x2 + 121y2
Mathematics