Solve.The height, in feet, of a rock dropped from a bridge 49 ft above a lake is given by the expression 
where t is time in seconds. Factor this expression.
A. (7 - 4t)(7 - 4t)
B. (7 + 4t)(7 - 4t)
C. (49 + 16t)(49 - 16t)
D. (7 + 4t)(7 + 4t)
Answer: B
Mathematics
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÷ 2
A. -1
B. -2
C. -1
D. -1
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Use an analytic method to solve the equation.
= 
A. {0, 2} B. {0, 4} C. {-4} D. ?
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Decide whether the problem is an equation or an expression.7(2x + 6) - 2(4x - 7)
A. Expression B. Equation
Mathematics
Solve.
= 5
A. x = 24 B. x = -12 C. x = 12 D. x = 6
Mathematics