The sum of nine and a number
3+x
9+8
x/9
a number
divided by 9
nine less than a
number
9/
the product of 9
and a number
The sum of nine
and eight
X-9
nine divided by a
number
9n
three increased
by a number
9+x

Please Help :)

if x = 1, then the answer is 3.5

you have to put the graph on here with the question

step-by-step explanation:

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.