Among the following pairs of antonyms, which are binary and which are non-binary? Example: Hot, Cold (non-binary) tall, short expensive, cheap beautiful, ugly happy, unhappy pass, fail deep, shallow legal, illegal rich, poor fast, slow rude, polite

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4

i'm pretty sure i had this question the other day and b was the right answer.

b. our party quickly made its way into the cave / but we failed to find our host [the cyclops] himself inside.

c. monica received many complements about her homemade lasagna.

explanation:

monica received many complements about her homemade lasagna uses the underlined word complements correctly.