Solve the problem.Assume that the profit P made when t units are sold, t > 0, is given by P(t) = t2 - 22t + 117. For what values of t will there be a profit (that is, P > 0)?
A. There will be a profit when the number of units sold is between, but not including, 9 and 13.
B. There will be a profit when 9 or 13 units are sold.
C. There will be a profit when 22 units are sold.
D. There will be a profit when fewer than 9 or more than 13 units are sold.
Answer: D
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A. y = -7x + 9 B. y = -7x + 6 C. y = -7x - 6 D. y = -7x - 9
Change the equation 
to quadratic form and solve it by any method.
?
Enter your answer as two numbers, separated by a comma. Round to two decimal places, if necessary.
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Solve the problem.There is less than $900 difference between the tuition at State University and Highbrow College. The tuition at Highbrow is $4000. Express this as an absolute value inequality. Use "x" for the tuition of State University.
A. 
< 900
B. x > 4000 - 
C. x < 
D. 
< 4000