Which of the following is a valid counterexample to disprove the given statement?
If A, B, and C are collinear, then AB + BC = AC.

A) C is between A and B
B) AB + BC is not equal to AC
C) B is between A and C
D) A, B and C are non-colinear

Which expression gives the area of the triangle shown below

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?