a procedure of multiplying be conversation factors to divide out common units and convert between different measurements is

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

Ineed to know the answer to this algebra question.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.