Answer:
[tex]2,124\ in^{2}[/tex]
Step-by-step explanation:
we know that
The surface area of a rectangular prism is equal to
[tex]SA=2B+Ph[/tex]
where
B is the area of the base
P is the perimeter of the base
h is the height
In this problem we have
[tex]B=18*24=432\ in^{2}[/tex]
[tex]P=2(18+24)=84\ in[/tex]
[tex]h=15\ in[/tex]
substitute
[tex]SA=2(432)+(84)(15)=2,124\ in^{2}[/tex]
