Answer:
7.2
Step-by-step explanation:
The points shown form a right angle triangle along the x axis so the distance is the hypotenuse. So
a**2 + b**2 = c**2
4**2 + 6**2 = c**2
16 + 36 = c**2
52 = c**2
52**(1/2) = c
7.2 = c
