Simplify the expression. Assume that all variables are positive when they appear.
A. -4x8y8
B. 16x8y8
C. 4x8y8
D. -4x12y12
Answer: A
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Find the extreme values of the function subject to the given constraint.
A. Maximum: 192 at 
minimum: 0 at 
B. Maximum: none; minimum: 0 at 
C. Maximum: none; minimum: 192 at 
D. Maximum: 192 at 
minimum: -192 at 
Solve. Write the fraction in simplest form.The total length of a bicycle race is 
of a mile. Sunee has completed 
of a mile. How much does she have left to complete?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Solve the problem.City residents were surveyed concerning their preferences for candidates Moore and Allen in an upcoming election. Of the 800 respondents, 300 support neither Moore nor Allen, 100 support both Moore and Allen, and 250 support only Moore. How many residents support Allen?
A. 250 B. 400 C. 150 D. 100
Solve the inequality. Graph the solution set and write it in interval notation.-7x > -14 and x + 7 > 8
A. ?
B. (-?, 1) ? (2, ?)
C. (2, ?)
D. (1, 2)