Help with all of these with the work and I will give 50 points ok I just need help ok 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

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Find the value of x to the nearest tenth.