Help this is the last assignment i need to do please and thank you!

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

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

Two numbers have a sum of -19. one number is x. what expression represents the other number?