Express the given function as a composite of functions f and g such that y = f(g(x)).y = 
A. f(x) = 10, g(x) = 
B. f(x) = 
, g(x) = 10
C. f(x) = 
, g(x) = 6x + 7
D. f(x) = 
, g(x) = 6x + 7
Answer: D
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Solve the problem.A = ?r2, where r is the radius, in centimeters. By approximately how much does the area of a circle decrease when the radius is decreased from 4.0 cm to 3.9 cm? (Use 3.14 for ?.)
A. 2.5 cm2 B. 1.3 cm2 C. 2.3 cm2 D. 2.7 cm2
Write using exponential notation.11 ? 11 ? 11 ? 11
A. 411 B. 4 ? 11 C. 111 D. 114
Use the properties of equality to solve the equation.
+ 
= 
A. 
B. - 
C. 
D. - 
Solve the problem.The table lists the average annual cost (in dollars) of tuition and fees at a certain 2-year college for selected years, where year 1 represents 1992, year 3 represents 1994, and so on. Use the ordered pairs (3, 1149) and (9, 1302) to find the equation of a line that approximates the data. (If necessary, round the slope to the nearest hundredth and the y-intercept to the nearest whole number.) 
A. y = 25.5x + 996 B. y = 25.5x + 1073 C. y = 25.5x - 1226 D. y = 51x + 996