A quadrilatetal with two different pairs of equal and parallel sides.
Answer:

Therefore, option C is correct.
Step-by-step explanation:
We have been given the equation:

We will take LCM 4 on right hand side of the above equation:

Now, we will multiply the 4 in denominator on right hand side to the y in left hand side pof the equation we get:

After rearranging the terms we get:

Therefore, option C is correct.
I think that B is the most logical answer.
Answer:
a. 7
Step-by-step explanation:
7x7=49