A group of friends were working on a student film that had a budget of $900. They used 87% of their budget on costumes. How much money did they spend on costumes?

Can someone me with my hwplz(only the circled ones)

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?

Mr.zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years