A new television depreciates \( \$ 140 \) per year, and it is worth \( \$ 400 \) after three years. Find a function that describes the value of this television, if \( x \) is the age of the television in years. \( f ( x ) = \square \) (Simplify your answer. Do not include the \( \$ \) symbol in your answer.) 

uisl 3 a) \( x^{2}-12=0 \) b) \( 4 x^{2}-7 x=0 \) c) \( 6 x+12 x^{2}=0 \)

Which expressions are equivalent to the given expression? \( 5 \log _{10} x+\log _{10} 20-\log _{10} 10 \)

Type the correct answer in the box. Use numerals instead of words. If necessary, use/ for the fraction bar What value of \( x \) satisfies this equation? \( 1.5(4)^{2 x}=12 \) Round your answer to the nearest hundredth. The value of \( x \) is

If no denominator equals zero, which expression is equivalent to \( \frac{x+2}{x^{2}-16} \div \frac{2 x+4}{x^{2}+3 x-4} \) ? A. \( \frac{x-1}{3 / x-1)} \)

Enter the correct answer in the box. Rewrite the expression \( 2 \sqrt[4]{x^{7}} \) using rational exponents. \( \begin{array}{lll}\frac{\square}{\square} & \text { (ㅁ) } \mid \text { 미 } \square^{\square} \mid+--\end{array} \)