F(-1,-8),and g(-6,-3) identify the points of the image of line segment fg after a reflection: in the line y = 2 rotation: 90 degrees about the origin

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.

How is this equation completed? i cannot find any examples in the book.