Simplify the expression, writing the answer as a single term without negative exponents.(-9a-1 - 3b-1)-1
A. 
B. 
C. 
D. 
Answer: D
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Use the graph to evaluate the limit.
f(x)
A. ? B. 1 C. does not exist D. -1
Find the composition.f(x) = -4x - 3; g(x) = 3x2 + 8x - 8Find (f ? g)(-9).
A. 355 B. -655 C. 3523 D. 425
Complete the square for the binomial. Then factor the resulting perfect square trinomial.x2 - 6x
A. x2 - 6x + 36 = (x - 6)2 B. x2 - 6x - 9 = (x - 3)2 C. x2 - 6x + 9 = (x - 3)2 D. x2 - 6x - 36 = (x - 6)2
Solve.The population of a suburb of Phoenix was 34.6 thousand in 2001. In addition, the population has been growing at a rate of 1.1% annually. Assuming that this growth rate continued, the model 
represents the population (in thousands of people) in the year t.(a) According to the model what will be the population of this suburb in 2010?(b) According to the model, in what year will the population of the suburb be 50 thousand?
A. (a) 37.8 thousand (b) 2002 B. (a) 38.6 thousand (b) 2034 C. (a) 38.2 thousand (b) 2251 D. (a) 38.2 thousand (b) 2035