Micah started an exercise program. The first day, he walked 20 minutes. Each day after that, he added 4 minutes to his walking time the previous day. Which expression shows how far Micah walked n days after he started? A 4n20 B 20n4 C 4(n20) D 20(n4)

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Reflect the point (7,0) across the y-axis

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?