The lines below are perpendicular . If the slope of the green line is 3/2 , what is the slope of the red line?

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?

I’m still confused on how to work the percentages

Y+ 2/y is it a polynomial in one variable or not? and if so, why?