Answer: don't know sorry
Step-by-step explanation:
Answer:
a=-5,b=3c=-8 d=?
Step-by-step explanation:
You can calculate the difference/vector of both points:

then calculate the magnitude/length like pythagoras
I don’t know how to explain but I can work out the correct ans
To find how much is needed for one person
280/4=70
For 10 person:70*10=700