Mike and Larry are friends who share the same birthday. They decided to have a birthday party together and invited all their friends. Mike received 21 gifts while Larry received 12 gifts. What is the ratio of gifts for Mike to Larry?

Find the missing part. use an improper fraction for your answer.

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

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?