Arectangle has an area of 8 square centimeters

answer:

congrats? is this a question? what are you asking haha?

answer:

is the question complete cause i don't understand it

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

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.