Find the sum of the sequence.
A. 7
B. 5
C. 84
D. 12
Answer: C
Mathematics
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Solve the equation for the indicated variable.2 - (n - 0.2x) = 3n for x
A. 
B. 10 - 20 n
C. 10 n - 2
D. 20 n - 10
Mathematics
Find the sum.1 +2 + 3 + . . . + 755
A. 284,635 B. 570,780 C. 570,025 D. 285,390
Mathematics
Add or subtract vertically.Subtract -x3y3 + x2y2 - x2y - 4x + 4 from 7x3y3 + 6x2y2 - x2y + xy2 + 4x + 2.
A. 8x3y3 + 7x2y2 - 2x2y + xy2 + 6 B. 8x3y3 + 7x2y2 + x2y + 8x - 2 C. 8x3y3 + 5x2y2 + 2xy2 - 2 D. 8x3y3 + 5x2y2 + xy2 + 8x - 2
Mathematics
Solve.A map has a scale of 3 miles to the inch. How far apart in reality are two cities that are 24 inches apart on the map? How far apart on the map are two cities that, in reality, are 24 miles apart?
A. 72 miles; 8 inches B. 8 miles; 8 inches C. 72 miles; 72 inches D. 8 miles; 72 inches
Mathematics