8. Tommy and Timmy co-own a joke shop and uses the gross profit approach for pricing for theif items. The starter magic kit costs $2.50 to purchase from their manufacturer and their target margin is 35%. Calculate the price of one magic kit to the nearest whole dollar. 9. Buster creates custom postcards for children and sells them on Etsy. The children love his postcards since the postcards are magical and take them to that place. Buster would like to achieve an 80% target profit margin and each cape costs $5 in variable costs to make. How much should Buster charge for his postcards? 10. Arthur decided to partner with Buster on his postcard business. Arthur created postcards featuring aardvarks with glasses. His postcards cost $10.25 to make and he wants to achleve a gross profit margin of 65%. How much should Arthur charge for his postcards