Answer question if false will be removed

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

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?