Use the given information to answer the question.The number N, in millions of Americans of age x with arthritis, is estimated with the following graph. 
What approximate age (closest integer) has the most arthritic Americans?
A. 21
B. 88
C. 65
D. 60
Answer: C
Mathematics
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Write the equation as an equivalent exponential equation.log3 
= -4
A. 
4 = 3
B. 381 = 4
C. 3-4 = 
D. 43 = 
Mathematics
Find the LCD for the list of rational expressions.
, 
A. 3a2 + 12 B. 3a + 4 C. 3a2 + 4 D. 3a(a + 4)
Mathematics
How many hectares are contained in a rectangular field that measures 72 m by 51 m?
A. 36.72 ha B. 0.03672 ha C. 0.3672 ha D. 3.672 ha E. 367.2 ha
Mathematics
Solve by the substitution method.x + y = -9x + y = 3
A. {(-9, 3)} B. {(0, -6)} C. ? D. {(x, y)|x + y = 3}
Mathematics