Write a Python program to: ask the user to enter the price of an item. Note: use a while loop to check the validity of the price and, if the user enters a price less than or equal to zero, to prompt...

Write a Python program to: ask the user to enter the price of an item. Note: use a while
loop to check the validity of the price and, if the user enters a price less than or equal to
zero, to prompt for a valid price. Prompt the user for the quantity being purchased. If the
quantity is ten or greater, apply a discount of 5 percent. (.95*price*quantity).