Help me with this please

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

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

What is the base of 1/9 to the power of 2