Simplify the expression using the order of operations.(-9)2 - 22
A. 85
B. -22
C. -77
D. 77
Answer: D
Mathematics
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Graph.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.
+ 7b
+ 5
A. 252ab
B. 54ab2
C. 252b
D. 54b
Mathematics
Encode or decode the given message, as requested, numbering the letters of the alphabet 1 through 26 in their usual order.Use the coding matrix A = 
to encode the message COME_HERE.
A. 
B. 
C. 
D. 
Mathematics
Solve the system by elimination.
A. 
B. 
C. 
D. 
Mathematics