Mathematics, 16.10.2020 06:01 jordivivar74

Janet, Rosi, and Tanya buy postcards from their favorite souvenir shop Janet buys 3 postcards for $1.05 Rosie by five postcards for $1.75 Tanya Buys eight postcards for $3.80 are the cost why in dollars and the numbers of postcards extra personal explain your answer right in equation to represent the relationship if possible

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Janet, Rosi, and Tanya buy postcards from their favorite souvenir shop Janet buys 3 postcards for $1...