Pls help only those who know for certain answer pls

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

Ineed with number 17 i don’t get it at alll

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