Richard earns \( \$ 12.00 \) per hour at the coffee shop. After three months, his salary is increased to \( \$ 12.60 \) per hour. Express the change in Richard's salary as a percent. A. Find the amount of the change in Richard's \( 12.60-12.00=0.60 \) salary. B. Evaluate the change relative to the original \( \frac{0.60}{12.00}=0.05=5 \% \) amount and express as a percent. C. Is this a percent increase or decrease? Richard's salary increased \( 5 \% \).

Let \( g(x) \) be the reflection of \( f(x)=2 x+9 \) in the \( x \)-axis. What is a function rule for \( g(x) \) ? \( \begin{array}{l}g(x)=-2 x+9 \\ \text { o } g(x)=-2 x-9 \\ g(x)=2 x+9 \\ g(x)=2 x-9\end{array} \)

The graph of \( f(x)=(x-3)^{2} \) is exactly the same as the graph of \( f(x)=x^{2} \), except the graph of \( f(x)=(x-3)^{2} \) is shifted a down 3 units. o of dight 3 units.

\( \begin{array}{llll}\frac{2}{3} & \text { B) } \frac{3}{16} & \text { C) } 1 \frac{13}{16} & \text { D) } 1 \frac{1}{8} \\ 2010 \frac{2009}{2010} \cdot 2011 \frac{2009}{2010}-2009 \frac{2009}{2010} \cdot 2012 \frac{2009}{2010}\end{array} \)

(2) Calcular las siguientes raíces. a) \( \sqrt{\frac{25}{49}}= \)

David gained 13 pounds over the winter He went on a diet and lost 27 pounds Then he reganed 3 pounds and weighed 1717 pounds How much did he wogh angrath