Express the following ratio as a fraction in lowest terms.27 people to 15 people
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the cardinal number of the set.The numbers in the Venn Diagram below represent cardinalities.
Find n(A' ? B' ? C)
A. 14 B. 21 C. 27 D. 13
Mathematics
Determine if the given function y = f(x) is a solution of the accompanying differential equation.y' = - y2y = 
A. Yes B. No
Mathematics
Find the perimeter (or circumference) and area of the figure. For the circle, give the exact value and then use 
for an approximation.
A. P: 18 cm; A: 18 cm2 B. P: 9 cm; A: 36 cm2 C. P: 6 cm; A: 18 cm2 D. P: 18 cm; A: 36 cm2
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 3x + 6
A. f-1(x) = 
B. f-1(x) = - 
C. f-1(x) = 
D. f(x) = 
Mathematics