Acopy machine makes 28 copies per minute. how long does it take to make 154 copies?

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.

wait this depends wether emily and zach how they are thinking.

yes they are the same.

the ordered pairs for the given function are of the form

i don't even know how to read that, ill try to do it if you translate it into english.