The answer will be
15m+10
<h3> - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - -
</h3>
➷ -22.5 - (-18) = -4.5
-27 - (-22.5) = -4.5
The common difference is 4.5
➶Hope This Helps You!
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↬ Hannah ♡
Answer:
$9 per flower
Step-by-step explanation:
divide cost ($90) by the number of items (10 flowers)
If this exact question is repeatedly deleted, it's probably because of the ambiguity of the given equation. I see two likely interpretations, for instance:

or

If the first one is what you intended, then

and it follows that
2<em>k</em> + 8 = 3 ==> 2<em>k</em> = -5 ==> <em>k</em> = -5/2
If you meant the second one, then

which would give
<em>k</em> + 9 = 3 ==> <em>k</em> = -6
And for all I know, you might have meant some other alternative... When you can, you should include a picture of your problem.