2w(3w-1) = 6w-2w =4w is this correct?

No, sorry, that's not correct.  

2w(3w - 1)

We dstribute the 2w factor

= (2w)(3w) - 2w(1)

then we multiply out each term,

= 6w² - 2w

and we can stop here.

pla·gia·rism

/ˈplājəˌrizəm/

learn to pronounce

noun

the practice of taking someone else's work or ideas and passing them off as one's own.

step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)