Answer:
59
Step-by-step explanation:
1) so you start with the mean being 72x5=360
2)100+42+87+66=295
3) 360-295=65
(you get the 5 from the amount of numbers there are) P.S sorry if I'm wrong or this doesn't help
The answer is 8.6 units.
To solve this problem you use the distance formula.
Your answer will be x= -4y/3 + 55/3