math 1 question

Suppose you are building a brick border for a garden by stacking rows of bricks on top of each other. If the height of each brick is 2.5 inches and r represents the number of rows, which algebraic expression would represent the height of the brick wall?

2.5 + r***
2.5r + r
2.5
2.5r

am i correct? please help!

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  1. no, is it 2.5r? times?

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  2. yes 2.5 times r = 2.5 r

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    posted by Damon
  3. the answer is 2.5r

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