I- help please I don't understand this

At which value in the domain does f(x) =0?

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

An object in geometry with no width, length or height is a(n):