Find the average of the set of numbers.
, 
, and 
A. 
B. 1
C. 
D. 
Answer: A
Mathematics
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Perform the necessary operations.4 + 7 - 12
A. 9 B. -15 C. 23 D. -1
Mathematics
Solve the equation.
- 2 = 
A. {8} B. no solution C. {-8} D. {8, -8}
Mathematics
Solve the problem.A room in the shape of a triangle has sides of length 6 yd, 9 yd, and 13 yd. If carpeting costs $14.50 a square yard and padding costs $5.25 a square yard, how much to the nearest dollar will it cost to carpet the room, assuming that there is no waste?
A. $456 B. $450 C. $343 D. $467
Mathematics
Solve. Write the answer in simplest form.Find 
of 77.
A. 7
B. 
C. 847
D. 11
Mathematics