the app is prothelon.com

What are the next improvement and development to improve the Database and the apps depending on your analysis? Draw the new ERD, Table Relation and Write SQL involved! Kind of car: sedan (2), MPV (2), SUV(2) Rent by customer: alex john, sarah Customer total cost: alex ($5), john ($16), sarah ($7.5) Data rent recap: car name rent cost rent frequency civic 35 1 avega 35 1 innova 40 1 xpander 40 2. terios 45 1 Customer rent recap: customer name frequency total car rented alex 1 1 2 4 john sarah 1 1 What are the next improvement and development to improve the Database and the apps depending on your analysis? Draw the new ERD, Table Relation and Write SQL involved! Kind of car: sedan (2), MPV (2), SUV(2) Rent by customer: alex john, sarah Customer total cost: alex ($5), john ($16), sarah ($7.5) Data rent recap: car name rent cost rent frequency civic 35 1 avega 35 1 innova 40 1 xpander 40 2. terios 45 1 Customer rent recap: customer name frequency total car rented alex 1 1 2 4 john sarah 1 1