State the phrase as a mathematical expression. Use x to represent the variable.The product of seven and four more than a number
A. 7 ? 4 + x
B. 7 + 4 ? x
C. (7 + 4)x
D. 7(x + 4)
Answer: D
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14 B. -5 C. 0 D. 1
Mathematics
Simplify the radical expression. Assume that all variables represent positive real numbers.
A. 64
B. 8
C. 
D. 1
Mathematics
Solve the quadratic equation by completing the square.7x2 - 2x - 2 = 0
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression 
.
A. 
B. 
C. 
D. 
E. 
Mathematics