Lien, the proprietor of a grocery store, prepares her Deluxe Nut Combo Mix by mixing various ingredients she buys in bulk. The second column of the following table shows the amount of each ingredient Lien uses in making a batch of the Combo mix. To set the retail price of the mix at 150% of her cost, Lien must determine her cost based on the average wholesale cost of the ingredients, which is shown in the third column.

a. What is Lien€™s average cost per 100 g of her Deluxe Nut Combo?
b. What is her retail price per 100 g?

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Ingredient Amount Cost per kg Peanuts Cashews Almonds Sunflower seeds Raisins Smarties $2.95 2 kg $9.50 1kg $11.50 $2.75 3.60 $6.40 5 kg 500g 400 g 300 g