Keith and Uri had a total of $80 at first. Keith received some money from his father and Uri spent $14 on a pencil case. Both of them had a total of $100 in the end. How much did Keith receive from his father?

Cayden and Jayden had a total of $784. After Cayden spent 1/6 of his money on food and Jayden spent $124 on toys, they had the same amount left. How much money did Cayden have at first?

A worker receives a 19% holiday loading and receives total holiday pay of $2300 for the four weeks he is on holiday. How much does the worker receive per week?

A saleslady receives a weekly salary of and an additional of her total sales on that week for selling laptops. If she receives a salary of , how much were her total sales that week?