Help me out pls (math so imp)

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line