Pentagon pqrst and its reflection, pentagon p'q'r's't', are shown in the coordinate plane below: what is the line of reflection between pentagons pqrst and p'q'r's't'?

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?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

How many terms does the polynomial x^2 y^2 have