QUESTIONS The carbon dioxide we exhale comes from
O the electron transport chain.
O water that is broken down.
O NADH that is oxidized.
the carbons removed from glucose.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

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.

: -)

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