Write and solve an equation to find the percent increase or decrease. Round your answer to the nearest tenth of a percent, if necessary.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 37 questions correct. What was the percent of increase?
A. 12%
B. 32.4%
C. 52%
D. 48%
Answer: D
Mathematics
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Multiply. Simplify, if necessary.
? 
A. - 
B. - 
C. - 
D. - 1
Mathematics
Evaluate.
A. 
x2 + 
x + C
B. 
x3 - 
x2 + C
C. 
x3 + C
D. - 
x3 - 
x2 + C
Mathematics
Determine the greatest common factor for the pair of numbers.14, 40
A. 14 B. 16 C. 2 D. 8
Mathematics
Find the derivative.y = (csc x + cot x)(csc x - cot x)
A. y ' = - csc x cot x B. y ' = 0 C. y ' = 1 D. y ' = - csc2 x
Mathematics