Evaluate the expression for the given value or values.- 
, for y = -45, z = 5
A. -5
B. 9
C. 5
D. -9
Answer: B
Mathematics
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Find the specified maximum and / or minimum.Find the maximum and minimum of 
subject to 
, 
, 
.
A. 280, 36 B. 280, 220 C. 60, 36 D. 220, 24
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Express the phrase as a ratio in lowest terms.21 in. to 6 in.
A. 
B. 
C. 
D. 
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Divide. Write the answer in lowest terms and as a whole or mixed number where possible.4 ÷ 
A. 1
B. 
C. 
D. 10
Mathematics
Express using positive exponents. Then simplify.x-8
A. x8
B. 
C. 
D. 8x
Mathematics