Lisa bought a computer on sale for 30 percent off of 599 dollars. what is the discount

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have