Algebraic expression 15 less than p squared​

Give me the equations of two lines that have the same slope but are not parallel.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm