Need help with this thanks

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

Find the distance between c and d on the number line c=3 and d=11

Write the equation of the circle centered at (10,-2) with radius 2.