The hypotenuse would be square root of 41
The answer in simplest form would be 2 and 3 fifths gallons of gas.
The area of rectangular garden is 
<h3><u>Solution:</u></h3>
Given that a rectangular garden has width = 4x - 6
Length of rectangular garden = 2x + 4
To find: area of rectangular garden
<em><u>The area of rectangle is given as:</u></em>

Substituting the values in given formula,

Thus the area of rectangular garden is 