Answer:
All real numbers except w ≠ 0
Explanation:
The domain of the function is all input values for w which are a part of the function. This is a rational function 75/w since the variable is in the denominator. This means the domain will be all real numbers except where the denominator is 0. So w=0 cannot be in the domain since the denominator can not be 0 to divide. Thus the domain is all real numbers except 0.