Astore sold 650 bicycles last year this year the store sold 572 bicycles what is the percent decrease in the number of bicycles sold from last year to this year?

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?