Consider this conversation between two work colleagues:Debra: Hey Gary, what did you say you needed these other selling prices for again?Gary: I$\text{'}$m trying to figure out if my potential customers will be willing to pay what I want to charge for my clever upgrade to plastic storage containers.Debra: Oh$,$ wow, that sounds super exciting: thanks for including me in this analysis.Gary: You just wait, Debra. I$\text{'}$m going to make a dent in this market, and then we'll see who retires at age $45!$Debra gathered the following selling price information about other plastic storage containers on the market.Competitor $9$x$13$ Plastic Containers with Lid:$$12,$ lid fits tightly but is not spill$-$proof$$15,$ lid is spill$-$proof but snaps on loudly$$10,$ lid just rests on top so is not tight$-$fittingHowever, without access to competitors' internal records, she could not determine their costs.Meanwhile, Gary made note of his production costs and secretly smiled to himself as he thought about what a great idea he had. Hewants to make plastic storage containers that have a locking lid. More than that, the lid locks quietly, so no one knows you're sneaking a treat from the container $($yes$,$ Gary got busted stealing Debra's famous chocolate cookies, and he vowed to fix this problem permanently$).$ Here's his estimated costs to produce and sell one $9$ x $13$ plastic container with quiet, spill$-$proof lid:DM: $$4,$ DL: $4,$ MOH: $6,$ Selling expenses: $2,$Administrative expenses: $5.$ If Gary determines that he needs to use a $30\%$ markup on full cost to make this effort "worth it$"$ for him, how much must he charge per container?

Selling price: $....$$