Help Plz 20pts. i just need this one question

b. heterotroph

explanation:

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this