Answer:
Hence the domain is given as,b is such that b is a member of all real numbers,except b=0,a=0, a=-b
Step-by-step explanation:
The domain refers to values for which the expression is defined.
This implies that, the denominators are not equal to zero.
![(\frac{a + b}{b} - \frac{a}{a + b}) \div ( \frac{a + b}{a} - \frac{b}{a + b})](https://tex.z-dn.net/?f=%20%28%5Cfrac%7Ba%20%2B%20b%7D%7Bb%7D%20-%20%20%5Cfrac%7Ba%7D%7Ba%20%2B%20b%7D%29%20%5Cdiv%20%28%20%5Cfrac%7Ba%20%2B%20b%7D%7Ba%7D%20-%20%20%5Cfrac%7Bb%7D%7Ba%20%2B%20b%7D%29)
![(\frac{(a + b)(a + b)-ab}{b(a + b)})\div(\frac{(a + b)(a + b)-ab}{a(a + b)})](https://tex.z-dn.net/?f=%20%28%5Cfrac%7B%28a%20%2B%20b%29%28a%20%2B%20b%29-ab%7D%7Bb%28a%20%2B%20b%29%7D%29%5Cdiv%28%5Cfrac%7B%28a%20%2B%20b%29%28a%20%2B%20b%29-ab%7D%7Ba%28a%20%2B%20b%29%7D%29)
![\frac{(a + b)(a + b)-ab}{b(a + b)} \times\frac{a(a + b)}{(a + b)(a + b)-ab}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%28a%20%2B%20b%29%28a%20%2B%20b%29-ab%7D%7Bb%28a%20%2B%20b%29%7D%20%5Ctimes%5Cfrac%7Ba%28a%20%2B%20b%29%7D%7B%28a%20%2B%20b%29%28a%20%2B%20b%29-ab%7D)
![\implies \frac{a}{b}](https://tex.z-dn.net/?f=%20%5Cimplies%20%5Cfrac%7Ba%7D%7Bb%7D%20)
Hence the domain is given as,b is such that b is a member of all real numbers,except b=0,a=0, and a=-b
Answer: the cost would be 2398.19
Step-by-step explanation: hope this helps:)
It's 225 hope this helps put brainliest answer need to get to the next rank
there are 31 days in August
365 days in a year
31/365 = 0.0849 probability