Answer:
875 square inches
Step-by-step explanation:
The lateral area of a triangular prism is the sum of the areas of the three rectangular faces:
13×25 +15×25 +7×25 = (13 +15 +7)×25 = 35×25
= 875 . . . square inches
_____
The area of a rectangle is the product of its length and width. As we have seen here, the lateral area is the product of the height of the prism and the perimeter of its base.
The domain is the set from which the function "starts", i.e. it is the set of the inputs you feed the function with.
In this case, the function starts from the set 
and lands on the set 
So, the domain is the set .
He can hit 3 out of every 12 bats. This can be translated to 3/12. We want to make the numerator 12, so we multiple the top by 4, so we have to do the same thing on the bottom. This fraction would be 12/48.
He has to bat 48.
