The original price was $60 and the new sales price is $45. What is the percent discount?

The ratio of blue cards to green cards is 2 to 5. there are 8 blue cards. complete the diagram and explain how you can find the number of green cards.

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?

15 oranges weigh 3.75 kilograms (kg). if each orange weighs approximately the same, approximately how much does each orange weigh?