Options a, b, and d are all correct.
I just substituted the x values into a calculator and checked if the y value was equal as well
it is definitely 77 becuase 7 times 11 is 77
Answer: The answer is (D) 
Step-by-step explanation: Given that there is a rectangle, where length of the rectangle is given by

and width of the rectangle is given by

We are to find the perimeter of the rectangle. To do so, we need to add two times length with two times breadth of the rectangle.
Therefore, perimeter is given by

Thus, the correct option is (D).
Answer:
2
Step-by-step explanation:
1-5V=V+9-10V
1-5V-V-(-10V)=9
1-5V-V+10V=9
1-6V+10V=9
1+4V=9
4V=9-1
4V=8
V=8/4
V=2