Solve the problem.The price of Enrico's plane ticket is $799. Enrico's father will pay 50% of the cost. How much will Enrico's father pay?
A. $39,950
B. $419.50
C. $412.50
D. $399.50
Answer: D
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Determine whether the two lines are parallel, perpendicular, or neither parallel nor perpendicular. 3x - 8y = -1632x + 12y = -15
A. Parallel B. Perpendicular C. Neither
Provide an appropriate response.Explain why the equation x2 = 25 has two real number solutions, while the equation 
has only one real number solution.
What will be an ideal response?
Write the number in word form.A company had net revenues of $6,900,265 in one year.
A. Six million, nine thousand, two hundred, sixty-five B. Six million, ninety thousand, two hundred, sixty-five C. Six million, nine hundred thousand, two hundred, sixty-five D. Six million, nine hundred thousand, two thousand, sixty-five
Solve the problem.The concentration of alcohol in a person's blood is measurable. Suppose that the risk R (given as a percent) of having an accident while driving a car can be modeled by the equation R = 5ekxwhere x is the variable concentration of alcohol in the blood and k is a constant.Suppose that a concentration of alcohol in the blood of 0.07 results in a 10% risk 
of an accident. Find the constant k in the equation.Using this value of k, what is the risk if the concentration is 0.11?
What will be an ideal response?