Can someone help with this.

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

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

Felix wrote several equations and determined that only one of the equations has no solution. which of these equations has no solution?