Answer:
approximately 83.33
Step-by-step explanation:
The formula for the area of a right square pyramid is: 
V= a^2(h/3) 
a= base edge 
h= height 
The height is 10 inches, and the base edge is 5 inches. Plug it in to the formula: 
V= 5^2 (10/3) 
V= 25 (10/3) 
V= 83.33 in^3