If m(x) = +1 and n(x) = x - 3. which function has the same domain as (mºn(x)?

Show me how you find y and z and determine what y and z are you i appreciate it : )

The cash price of a television is $580.the hire-purchase price of the television is $865.the hire-purchase price is an initial deposit of n% of the cash price and 6 equal monthly payments of $120.find the value of n.

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?