Answer:
Step-by-step explanation:
*
*
*
because the bases are all the same.. just add the exponents

or

4. 15 tens, 1 hundred, 5 tens
150
5. 18 tens, 1 hundred, 8 tens
180
note: I hope this helps. I haven't done this in a long time. Sorry X(
● Answer:
8.995 cm
● Step-by-step explanation:
P = d + L/2
d = 3.5 cm
L/2 = 2pi×r/2
= pi×d/2
= 3.14×3.5/2
= 5.495 cm
P = 3.5cm + 5.495
= 8.995 cm
the first one is the answer to #1
and the second one is the answer to #2
Perimeter of the carpet = 21.8 m
Area of the carpet = 
<u>Given</u>:
<em>Dimension of the living room:</em>
<em />
<em>A. </em><em>Perimeter </em><em>of the carpet = perimeter of a </em><em>rectangle</em>
Perimeter = 
Substitute

Perimeter of the carpet = 21.8 m (The digits here are significant)
<em>B. </em><em>Area </em><em>of the carper = </em><em>area </em><em>of a </em><em>rectangle </em>
Area = 
Substitute

Area of the carpet =
(the digits here are significant)
Therefore, considering the rules of significant digits:
Perimeter of the carpet = 21.8 m
Area of the carpet = 
Learn more here:
brainly.com/question/12932084