Which table shows a proportional relationship between x and y?
a. x 8 12 14 16
y 2 3 4 5

b. x 3 4.5 8 12
y 2 3 4 8

c. x 1 4 5 10
y 15 60 70 120

d. x 1 2 5 7
y 5 10 25 35

need ! answer !

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b.-4 units

all you   do is count how many times you move

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.