<span>If you know that a single point is closed (as a set), then any finite set is closed because they are finite unions of closed (single point) sets.</span>
The perimeter is 28 bc 5+5 is 10 and 9+9 is 18 so if you add 10 and 18 you get 28. Hope it helps:)
(please mark brainliest )
Total amount of grey blocks is 55 so divide that by the amount of columns it’s being divided into. The answers 5.
U add 1.5 everytime
so the next 3 terms: 8, 9.5 and 11
Answer:
49.5
Step-by-step explanation: