Plsss answer the question I have uploaded as a photo .To be called the brainiest

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

Karen is financing $291,875 to purchase a house. she obtained a 15/5 balloon mortgage at 5.35%. what will her balloon payment be? a. $220,089.34 b. $219,112.46 c. $246,181.39 d. $230,834.98

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15