*10. Alice prepared \( 32 \ell \) of soup for a fun fair She sold 11 C of soup in the morning. She sold \( 9 \ell \) of soup in the afternoon. How many litres of soup did she have lef

In the cost function below, \( C(x) \) is the cost of producing \( x \) items. Find the average cost per item when the required number of items is produced. \( C(x)=4.5 x+9,300 \) \( \begin{array}{lll}\text { a. } 200 \text { items } & \text { b. } 2000 \text { items } & \text { c. } 5000 \text { items }\end{array} \)

In the cost function below, \( C(x) \) is the cost of producing \( x \) items. Find the average cost per item when the required number of items is produced \( C(x)=6.4 x+10,500 \) \( \begin{array}{lll}\text { a. } 200 \text { items } & \text { b. } 2000 \text { items } & \text { c. } 5000 \text { items }\end{array} \)

The length of a rectangle is 5 meters less than twice the width. If the area of the rectangle is 493 square m The width is \( \square \) meters. The length is \( \square \) meters.

Evalúa \( a+(-b) \), donde \( a=4 \) y \( b=2 \). \( \square \)

Question 16 The polynomial function \( f \) is defined by \( f(x)=-3 x^{4}-7 x^{3}+3 x^{2}+9 x-1 \). Use the ALEKS graphing calculator to find all the points \( (x, f(x)) \) where there is a local minimum. Round to the nearest hundredth. If there is more than one point, enter them using the "and" button. \( (x, f(x))=\left(\prod_{1}, \square\right) \)