5^2 - 6^2
is the difference of 2 squares
and = (5-6)(5+6) = -11
Answer:
60
Step-by-step explanation:
Perimeter = 2l + 2w
57x2 = 114
234 - 114 = 120
120 / 2 = 60
Here is the working on this question.
<u>Answer:</u>
B. 
<u>Step-by-step explanation:</u>

• Now make x the subject of the equation:

• Replace x with f⁻¹(x) and y with x:
