I need help ASAP plz help

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

If 20% of a number is 35, what is 50% of that number?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0