What happens to the value of the expression 3e as e increases?

The value of the expression increases with increase in value of e.

Let, z=3eExpression

It is not given that which kind of number e is,that is either natural number, whole number, rational number,irrational number or Real Number.

So, if e is either of these set of numbers, then

with increase in value of e, the value of expression increases.

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2