This is easy what you should do is plug in 4 for the x's in the rational expression and what it should look like when finished is: 12+4/4+4.
To remember the steps in which and equation should be solved is:
P=Parentheses
E=Exponents
M=Multiply
D=Division
A=Add
S=Subtract
So the answer to the equation is: 17
Hoped this helped you into solving more equations like this one. :)
Digit in ones place- 6
Digit in tenths place- 5
A reasonable estimate would be an estimate of 2.5 feet.
