Explanation:
answer see in attachment
To estimate a number less than 5 we we should Round down for example 44 then 4 is less than 5 so it's estimated number is 40
let, width= x
then length= x+5
if both are increased by 5 feet then
new width =x+5
and length = x+5+5=x+10
therefore
area =(x+5)×(x+10)
next are same as first one.Have a try.
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