Kareem recently purchased a car for $8,000. Kareem made a down payment of $3,000 and took out a loan for the balance of the car's worth. Kareem has $550 in his savings account, and also owes $300 on his credit card. Based on these facts, what is Kareem's net worth?

Asap! i'm not good math and i'm lost.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

The triangles are similar. what is the value of x? enter your answer in the box.