Evaluate.-19 - (-19)
A. 57
B. 38
C. -38
D. 0
Answer: D
Mathematics
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Solve the problem.162 students attended an assembly at Piper School. The student enrollment at the school is 648. What percentage of the students attended the assembly?
A. 15% B. 30% C. 5% D. 25%
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Convert the radical expression to its rational exponent form and then simplify. Assume that all variables represent positive numbers.
A. 21/15 B. 215 C. 28 D. 21/8
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Find a parametric equation for the parabola described.Focus (-8, 10), directrix x = -2
A. x = - 
t2 - 5, y = t + 10
B. y = - 
t2 + 10, x = t - 5
C. x = - 
t2 + 5, y = t - 10
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Mathematics