The marker costs 13 as much as the pen. the pen costs 13 as much as the book. the book costs 13 as much as the game. the price of the marker is what fraction of the price of the game?

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?

Which of the following parabolas opens down?

Which number line correctly shows 0.8 + 0.3?