How do I find an angle measure?

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

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)

Which term applies to agb and dge? a. obtuse b. supplementary c. complementary d. vertical