We can find this area by substituting the values of x and y in the previous expression. Then, we can proceed as follows:
For x = 4, and y = 6, we have:
[tex]A_{\text{Jamesgarden}}=24x+16y\Rightarrow24\cdot(4)+16\cdot(6)=96+96\Rightarrow A_{Jamesgarden}=192[/tex]Then, we have that the area of James rectangular garden is 192 square units.