Answer:
The needed remodeling—new appliances, new flooring, and fresh paint—will be costly
Step-by-step explanation:
In other words, the dashes emphasize what they delimit, usually an explanation or detail of the information presented immediately before, without compromising the coherence and cohesion of the text. For example:
"The needed remodeling—new appliances, new flooring, and fresh paint—will be costly "