It costs a band $ 8 per t-shirt produced. at a small festival the band gives away 10 t-shirts, and sells others for $ 20 each. their total t-shirt-related profits (taking into account those they gave away) is $ 304, how many t-shirts did the band sell?

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?