Amy can estimate with 10% instead, so she can just simply move the decimal point of $9.11 to the right, and so it will be estimated to more than 91 cents.
The order is: -√5, √6, 2.43, 50/20
Please award brainliest :)
Length = 4w + 2
A = length x width
= (4w + 2) . w
= 4w^2 + 2w ft square