(-8,9), X(-4,5), Y(-4, – 3), and Z( -8, – 7)
ution.
untered at (0,0)
translation x-4 y-9
día latino 3/4 3/4

i think it is

step-by-step explanation:

a formal letter is a letter the you would send to a king

b, i believe, but not sure.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.