Task - Ximera

$\newcommand{\arraycolsep}[3]{} \newcommand{\dd}[2][]{\frac{d #1}{d #2}} \newcommand{\pp}[2][]{\frac{\partial #1}{\partial #2}} \newcommand{\veci}{\vec{\hat{\bf\imath}}} \newcommand{\vecj}{\vec{\hat{\bf\jmath}}} \newcommand{\utan}{\vec{\hat{t}}} \newcommand{\unormal}{\vec{\hat{n}}} \newenvironment{amatrix}[1]{% \begin{bmatrix} }{% \end{bmatrix} }$

$\newenvironment {prompt}{}{} \newcommand {\ungraded }[0]{} \newcommand {\HyperFirstAtBeginDocument }[0]{\AtBeginDocument }$

Please answer the following question based on the table of values:

How fast should you drive a car to use fuel as efficiently as possible?

$\begin {array}{ll} \textrm {Speed (miles per hour)} & \textrm {Fuel economy (miles per gallon)} \\ 45 & 43 \\ 50 & 44 \\ 55 & 45 \\ 60 & 41.5 \\ 65 & 38 \\ 70 & 35 \\ 75 & 32 \end {array}$

45 miles per hour 50 miles per hour 55 miles per hour 60 miles per hour 65 miles per hour 70 miles per hour 75 miles per hour You can’t tell without more information.