Add or subtract. Express the answer as a mixed number.12
- 
A. 12
B. 11
C. 10
D. 11
Answer: B
Mathematics
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Find the area of the figure. Use 3.14 to approximate ?, if needed.
A. 704.6875 sq m B. 1440.625 sq m C. 816.42 sq m D. 1195.3125 sq m
Mathematics
Solve the problem.A chemist needs 120 milliliters of a 39% solution but has only 23% and 71% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 40 mL of 23%; 80 mL of 71% B. 30 mL of 23%; 90 mL of 71% C. 80 mL of 23%; 40 mL of 71% D. 90 mL of 23%; 30 mL of 71%
Mathematics
Solve.Solve 
for h in terms of c and m
A. h = m - 4c
B. h = 4c + m
C. h = 4c - m
D. h = - 
Mathematics
Solve the problem.9 different books are to be arranged on a shelf. How many different arrangements are possible?
A. 181,440 B. 40,320 C. 362,880 D. 9
Mathematics