The width of rectangle is
and length is 
Step-by-step explanation:
Let,
Width of rectangle = w
Length of rectangle = w+
Perimeter of rectangle = 
Perimeter of rectangle = 2(Length + Width)

Subtracting
from both sides

Dividing both sides by 4

Therefore,
Width of rectangle = w =
cm
Length of rectangle = 
The width of rectangle is
and length is 
Keywords: perimeter, addition
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Answer:
gill bought 20 pencils
Step-by-step explanation:
10 pencils in each pack × 2 packs = 20 pencils in total
I think it's less than 7/2 usually bigger numbers are less in this case.
sorry if you got that wrong but i'm 85% sure
Answer:
21+j=55
Step-by-step explanation:
It says sum, which means to add(+). So you add 21 and j (21+j) and that equals 55 (=55). Then you add all the pieces together and you get 21+j=55