Answer the attached question. 10 points are yours

What is the range? can’t seem to find it out

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?

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.