Evaluate.y1 - 9, when y = -4
A. 7
B. -13
C. -65
D. -9
Answer: B
Mathematics
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Collect like terms and write in descending order.4z7 + 8z8
A. 12z15 B. 12z7 C. 8z8 + 4z7 D. 12z8
Mathematics
Find the value of the expression.
A. - 
B. 
C. 
D. - 
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Simplify the expression.(-x)5 ? (-x)8
A. (-x)40 B. (x)13 C. (x)40 D. (-x)13
Mathematics
Divide.- 
÷ 
A. 
B. - 
C. 1
D. -1
Mathematics