Quick! i'm offering 25pts & brainliest answer (its only worth 10pts) i just need this done show your work

QUESTION 1

The dimensions of the rectangular blanket are;



and



The perimeter is given by,



We substitute the dimensions to obtain,



Expand bracket to get,



This simplifies to


QUESTION 2

When


The perimeter becomes







QUESTION 3

Area is given by




We expand to get,



This gives us,



QUESTION 4

If

Then the area becomes,









QUESTION 5.

When the length of the blanket is 5cm longer, then the length of the new blanket becomes





The width is still



The perimeter of the new blanket is



This implies that,





Comparing to the old perimeter which is

,

The perimeter changes by 10 units