Which figure represents the image of parallelogram lmnp after a reflection across the line y = x? (see image)

Ineed to find the answer to number 2

Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter? a. 3x^2 + 38x + 55 b. 4x + 16 c. 5x + 16 d. 3x^3 + 38x^2 + 55x

Bob paid $3 less than tim at a local pizza parlor. together they spent $7.80. how much did bob pay for pizza?