Arthimetic sequence so use the formula
Answer: 18
Step-by-step explanation:
Set ' D ' is the only set of numbers that can be the
lengths of a triangle's sides. A, B, and C can't.
Good luck with that, that will be hard what type of stupid teacher gives that fro real.
Answer:
4.3
Step-by-step explanation:
mean=sum of the terms/number of term
room A=3+20+25+0+0+0=25
Room B= 2+18+4+0+0+0=24
room C= 28
room D= 21
room E= 32
step(2)
25+24+28+21+31=130/30
= 4.3