Model the problem with a linear equation.The average value of a certain type of automobile was $13,500 in 2008 and depreciated to $6660 in 2011. Let y be the average value of the automobile in the year x, where x = 0 represents 2008. Write a linear equation that models the value of the automobile in terms of the year x.
A. y = -2280x + 13,500
B. y = -2280x - 180
C. y = -2280x + 6660
D. y = - 
x - 6660
Answer: A
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= 5, 
= 5, ? = 
A. 12.5 B. 50 C. 21.7 D. 28.9
Change to the equivalent decimal.8
A. 1.17 B. 8.09 C. 1.09 D. 89.889
Use the end behavior of the graph of the polynomial function to determine whether the degree is even or odd and determine whether the leading coefficient is positive or negative.
A. odd; positive B. even; positive C. odd; negative D. even; negative
Solve the problem.At a private arts and science academy, in addition to tuition, the school charges for lab fees and supplies as shown in the table below.
Let f(n) be the per-student charge (in dollars) for lab fees and supplies for nth grade; kindergarten is represented by 
A model for this situation is 
Estimate for what grade the per-student charge for lab fees and supplies is $21.
A. 4th grade B. 1st grade C. 2nd grade D. 3rd grade