<human>:  Claire has 400 flowers in her garden. One hundred twenty are tulips, and the rest are roses. Eighty of the roses are white, while the rest are red. Each red rose is worth $0.75. How much will Claire earn if she can sell 1/2 of the total number of red roses?
<bot>: How many roses does Claire have? ** Claire has 400 - 120 = <<400-120=280>>280 roses in her garden.
How many red roses does Claire have? ** Thus, she has 280 - 80 = <<280-80=200>>200 red roses.
How many red roses are there? ** One-half of the red roses is equal to 1/2 x 200 = <<1/2*200=100>>100.
How much will Claire earn if she can sell 1/2 of the total number of red roses? ** Therefore, Claire will earn $0.75 x 100 = $75 if she can sell 1/2 of the total number of red roses.
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