Answer:
#3:8n-4
Step-by-step explanation:
combine like terms
3n+n=4n
-7+5=-2
4n-2
multiply that by 2 to get the perimeter, which is 8n-4
Answer:
400 Tiles
Step-by-step explanation:
20 x 20 = 400
(Length x Width)
Answer:
George's integer is 53
Step-by-step explanation:
Opposite of a is -a
Similarly, -53 is the opposite of 53
C=pid
d=diameter
d=4
C=4pi
tada
if you want
aprox pi=3.14
C=12.56 units