Samantha's mother spent $78 at a farmers market. She bought the same number of pounds of apples for $1. 50 per lb as tomatoes for $2. 50 per lb. She also bought half that weight of a farmers cheese that sold for $4. 00 per lb. The number of pounds of peaches she bought for $3. 00 per lb was one more pound than the farmers cheese. How many pounds of each product did samantha's mother buy?.