human
Katrina has 120 cookies to sell at her bakery. She plans to take home any cookies she doesn’t sell by the end of the day. In the morning, she sells 3 dozen cookies. During the lunch rush, she sells 57 cookies. In the afternoon, she sells 16 more cookies. How many cookies does she have left to take home?
assistant
How many cookies did Katrina sell in the morning? ** There are 12 cookies in 1 dozen, so in the morning, she sold 12 x 3 dozen = <<12*3=36>>36 cookies.
How many cookies did Katrina sell in total? ** Throughout the day, she sold 36 cookies in the morning + 57 cookies at lunch + 16 cookies in the afternoon = <<36+57+16=109>>109 cookies.
How many cookies does Katrina have left to take home? ** She started with 120 cookies – 109 cookies sold = <<120-109=11>>11 cookies to take home.
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