4. José le entrega a Olga 8 m de tela y le solicita que le corte la cuarta parte. ¿Cuántos metros de tela debe recortar Patricia? \( \begin{array}{llll}\text { A. } 4 & \text { B. } 3 & \text { C. } 2 & \text { D. } 1\end{array} \)

Find \( (f \circ g)(x) \) and \( (g \circ f)(x) \) and graph each of these functions. \( f(x)=-5 x \) \( g(x)=\cos x \) \( (f \circ g)(x)=-5 \cos x \) \( ( \) Simplify your answer.) \( (g \circ f)(x)=\cos (5 x) \) (Simplify your answer.) Use the graphing tool to graph the functions of \( (f \circ g)(x) \) and \( (g \circ f)(x) \) :

Perry has 30 feet of wood planks. If he cuts them into \( 15 / 8 \) foot pieces, how many \( 15 / 8 \) pieces will he have?

2 The eighth and tenth terms of a sequence are 64 and 100. If the sequence is either arithmetic or geometric, the ninth term can not be \( \begin{array}{ll}\text { 1) }-82 & \text { 3) } 80 \\ \text { 2) }-80 & \text { 4) } 82\end{array} \)

b. \( g(x)=x^{2}-7 x+1 \)

10) \( 12 x^{3}+18 x^{2}+10 x+15= \)