Solve 2/5=x/25 what is the c

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Pls yall i really need the answer fr fr

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?