Answer:
a) 800 square yards
b) 7200 square feet
Step-by-step explanation:
a) 40*20= 800 square yards
b) Each yard is 3 feet.
(40*3)*(20*3)=120*60=7200 square feet
Remember: We have to work from either the LHS or the RHS.
(Left hand side or the Right hand side)
You should already know this:

You should also know this:

So plugging in both of those into our identity, we get:

Simplify the denominator on the LHS (Left Hand Side)
We get:

LHS = RHS
Therefore, identity is verified.
Domain represents the possible x values for the function.
It is...
x≤-2 and x>2
answer: a,b,c,f
#2 is 35°C (just plug in 95 to the formula)
#3:
in the left column are:
(8x-(6+y))
(3/4)w+x^2
in the right column are:
y^2-0.5w
w/4+3(x+y)
to solve you just plug in to the formula