There are two functions that can be used to describe the percent of Americans 25 and older who have completed an associate's degree or higher. For both functions \( f(x)=0.72 x+35.2 \) and \( g(x)=0.04 x^{2}+0.47 x+34.9, x \) is the number of years since 2010, and any \( y \) (or \( f(x) \) or \( g(x)) \) is the percent of Americans 25 and older who have completed an associate's degree or higher. Assume that the trend of \( g(x) \) continues. Find \( g(18) \) and describe in words what this means.

12. प्रत्येक परिमेय संख्या एक ......... 13. \( \frac{-2}{3} \) तथा \( \frac{1}{4} \) के बीच एक परिमेय संख्या ज्ञात कीजिए।

Find an equation of the line having the given slope and containing the given point. Slope \( \frac{3}{4} \); through \( (-4,4) \)

Write the expression as a single logarithm. Express powers as factors. \( \ln \left(\frac{x}{x-1}\right)+\ln \left(\frac{x+1}{x}\right)-\ln \left(x^{2}-1\right) \) \( \ln \left(\frac{x}{x-1}\right)+\ln \left(\frac{x+1}{x}\right)-\ln \left(x^{2}-1\right)=\square \)

Consider \( g(x)=5 x-12 \). For what interval(s) is \( g(x) \) positive? negative? positive: \( \left(\frac{12}{5}, \infty\right) \); negative: \( \left(-\infty, \frac{12}{5}\right) \) o positive: \( (-\infty,-12) \); negative: \( (-12, \infty) \) positive: \( (-12, \infty) \); negative: \( (\infty,-12) \) positive: \( \left(-\infty, \frac{5}{12}\right) \); negative: \( \left(\frac{5}{12}, \infty\right) \)

Determine whether the following statement is true or false. Explain. The graph of \( f(x)=-x^{5} \) is a reflection in the \( x \)-axis of the graph of \( g(x)=x^{5} \). a \( \quad \) False, because the graph of \( y=f(-x) \) is a reflection in the \( y \)-axis of the graph of \( y \) c False, because the graph of \( y=f(-x) \) is a reflection in the \( y \)-axis of the graph of \( y= \) d \( y=-f(x) \) is a reflection in the \( y \)-axis of the graph of \( y= \) a because the graph of \( y=-f(x) \) is a reflection in the \( x \)-axis of the graph of \( y= \)