5 + 8x + 1 + 3x what’s the answer

6+11x

Step-by-step explanation:

For this you would combine like terms.

5+1=6

8x+3x=11x

Now, when you put these together you get

6+11x

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)