Area of square = l²
Perimeter of square = 4l
According to the question,

Using zero product property,
Either,

Or,

Since length can't be negative,
the length is 9
Answer:
€113.87
Step-by-step explanation:
Amount = £85.40 * €4/£3 = €113.87.
Answer:
The fraction will increase by 100%
Step-by-step explanation:
Say the fraction is x/y. The question is telling us to decrease x by 20% (i.e. 0.8x) and to decrease y by 60% (i.e. 0.4y):

You can see that by applying these changes, the new fraction is actually double the old fraction (i.e. will increase by 100%).
Answer:
x=13
Step-by-step explanation:
i don't know if that is right
You do the same operation on both sides.
Hope this helps!