Which expression represents the product of 17 and an unknown number? a 17 . n b n + 17 c n - 17 d 17 divide n

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

How to solve a simultaneous equation involved with fractions?

With alll of except for the 2 that i did already