an expression for the area of a rectangle

Question

answer this:

find the expression for the area of a rectangle (x+5)

Answer 1

8yd  and  6yd  wide  rectangle

Answer 2

A rectangular piece of property measures 50feet by 150 feet.The owner decides to surround the property with a fence placed exactly two feet inside of the property lines.How much fencing will be needed?

Answer 3

this is actually not a a real algebra thing because i am a 8 grade teacher so no it could be a possible -5 that is all i  know