First, you subtract 16r by 9r, which gives you 7r, so that leaves you with 8 + 7r. You cannot add a normal number and a number with a variable, so that's all you can do, so your answer is A.
Answer from: Quest
$6.42
step-by-step explanation:
Answer from: Quest
there were a lot of them but the first one to pop up on a google search was bts
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