Please reason step by step, and put your final answer within \boxed{}.
Carson needs to mow the lawn and plant some flowers. He has to mow 40 lines to cover the whole yard, taking 2 minutes to mow one line. He also needs to plant 8 rows of flowers, each with 7 flowers, and it takes him a certain amount of time to plant each flower. Carson will spend 108 minutes gardening. What is the ratio of the time it takes to plant one flower to the time it takes to mow one line?
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