Find all real solutions of the equation.
?
Fill in the blank(s) with the appropriate word(s).
Answer: 3
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Solve for x.2x = 16
A. x = 3 B. x = 8 C. x = 4 D. x = 5
Solve.The second angle of a triangle is 3 times as large as the first. The third angle is 40° more than the first. Find the measure of the smallest angle.
A. 28° B. 40° C. 140° D. 50°
Solve.The average value of a certain type of automobile was $14,520 in 1991 and depreciated to $6240 in 1995. Let y be the average value of the automobile in the year x, where x = 0 represents 1991. Write a linear equation that models the value of the automobile in terms of the year x.
A. y = -2070x + 14,520
B. y = -2070x - 2040
C. y = -2070x + 6240
D. y = - 
x - 6240
Determine the area of the shaded region in the figure. Use 3.14 for ? if necessary. 
A. 64 sq. cm B. 16 sq. cm C. 50.24 sq. cm D. 13.76 sq. cm