If 3x 6 = 213x plus 6 equals 21, what does x 2x plus 2 equal?.

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

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?

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?