Domain is the set of numbers you can use
usually, domain=all real numbers except those that divide by zero
so find those exceptions
find what numbers make deonenator equal to 0 and exclude them
x-23 is denom
x-23=0
x=23
doman is all real numbers except 23
The answer is :
23 3/8 can be written as 23.375
You'd need 8 packs of hot dogs and ten packs of buns!