Simplify the expression by combining like terms.7b - 5b + 2
A. 12b + 2
B. -2b + 2
C. 2b + 2
D. 4b
Answer: C
Mathematics
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Let U = {21, 22, 23, 24, ...}, A = {21, 22, 23, 24, ..., 40}, 
and 
Use the roster method to write the following set.C'
A. C' = {21, 23, 25, 27, ...} B. C' = {21, 22, 23, 24, ...} C. C' = {22, 24, 26, 28, ...} D. C' = {21, 23, 25, 27, ..., 39}
Mathematics
Which of the following graphs is the graph of the function?
 multiple choice.png)
Mathematics
Use the commutative and associative properties to simplify the expression.
A. t
B. 
t
C. 
t
D. 
t
Mathematics
Solve the system of equations by elimination, if a solution exists.
A. x = 0, y = 9 B. No solution C. x = -1, y = 9 D. x = 0, y = 8
Mathematics