Calculate.-20 + 55
A. -35
B. 75
C. 35
D. -75
Answer: C
Mathematics
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Integrate the function f over the given region.f(x, y) = xy over the triangular region with vertices (0, 0), (2, 0), and (0, 3)
A. 
B. 
C. 
D. 
Mathematics
Divide. Write the answer as a mixed number as needed.
÷ 5
A. 
B. 
C. 30
D. 
Mathematics
Solve the problem.The charge for renting a video is $2 plus $4 per day of renting. Give an expression for the cost C of renting a video for n days.
A. C = 2n + 4n B. C = 2n C. C = 4n D. C = 2 + 4n
Mathematics
Write as a percent.0.051
A. 5.1% B. 0.051% C. 51% D. 0.0051%
Mathematics