Find the orthocenter for the triangle described by each set of vertices. Q (4,-2), R (7,4), S (7,-7)

Officer brimberry wrote 24 tickets for traffic violations last week, but only 9 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.

Chanelle deposits $7,500 into the bank. she does not withdraw or deposit money for 6 years. she earns 6% interest during that time. what will the balance be when she is finally able to withdraw her money?

Which best explains why this triangle is or is not a right triangle?