Answer: 3.5% with a 3.50 Tip
Reason: 25.00 - 21.50 = 3.50
Hello!
P = 2,1cm + 2,1cm + 1cm + 3,3cm + 1cm => P = 4,2cm + 1cm + 3,3cm + 1cm => P = 5,2cm + 3,3cm + 1cm => P = 8,5cm + 1cm => P = 9,5cm
Answer: D. 9,5cm
Good luck! :)
M is a midpoint of BC so:

Length of MA:

Length of NB:
Hi!
Given:

Multiply both sides by 

<em>Notice the sign was flipped. This is because when you multiply or divide by a negative number, you must always flip the sign!</em>
<u>Now, for the graph:</u>
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For < or > signs, it should be an open circle. For
or
signs, it should be closed.
Since
is less than 6, it should go to the left. Since it's a < symbol, it should be open. Therefore your answer is B.
(looks like you were right!!)