Question

Help with geometry please! I don't know how to do this

Answer 1

We know that
scale factor=2.5
volume larger warehouse=scale factor³*volume smaller warehouse
volume larger warehouse=2.5³*volume smaller warehouse
volume larger warehouse=[15.625]*volume smaller warehouse

that means 
the volume of the larger warehouse is 15.625 times the volume smaller warehouse

the energy and cost is proportional to the volume
so
the new cost is 15.625*$125-----> $1953.12------> $1953

the answer is
$1953