Can you please tell me what the common denominator (lcm) and note will be

Which of the following three dimensional figures has a circle as it’s base

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?

Find y to the nearest hundreds place