Answer:
5.5, 7, 8.5
Step-by-step explanation:
Find the mean of 4 and 10, that is
=
= 7
Now repeat with 4 and 7 and 7 and 10
=
= 5.5
=
= 8.5
Hence
4, 5.5, 7, 8.5, 10 ← is an arithmetic sequence with d = 1.5
T r i a n g l e because if you cut it it becomes a triangle
81=3^4
I hope this helps! Good luck!
Answer: 72
Step-by-step explanation:
just did it