Solve.What is 5
% of 81? Round to the nearest hundredth if necessary.
A. 0.04
B. 4.21
C. 42.1
D. 421
Answer: B
Mathematics
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Solve the inequality.For the function f(x) = x2 + 10x + 21, solve f(x) > 0.
A. (-3, ?) B. (-?, -7) C. (-7, -3) D. (-?, -7) ? (-3, ?)
Mathematics
Solve the problem.Steve is older than Dilan but younger than Brandon. Donna is younger than Brandon. What is the first letter in the name of the oldest person?
A. B B. D C. K D. S
Mathematics
Solve for n in the following.n2 = 9
A. 
or - 
B. 
or - 
C. 3 or ?3
D. 81 or ?81
Mathematics
Write the expression in the standard form a + bi.2i15 - i7
A. 1 B. -1 C. i D. -i
Mathematics