OmG PLS HELP I am big struggloing

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn. if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

Which of the following circles have their centers in the third quadrant?