Answer:
D
Step-by-step explanation:
B. 6.72the answer is B 6.72
Answer:
4000 ft
Step-by-step explanation:
There is 3280.84 foot in km.
So, that makes the 4000 ft the longest.
Width= 1/2x length=x
to find the perimeter, it's the width+width+length+length so:
1/2x+1/2x+x+x=54
3x=54
x=18
the length is 18 cm and the width is 9 cm
Guessing you want to simplify each,
first one goes to just x
second goes to 4x
third goes to 18x-15