Suppose the setup cost for the Viper changes to $$4500$ and the variable labor cost changes to $$2\mathrm{.}75$ per unit. $1)$ What is the total fixed cost?$2)$ What is the total variable cost per unit?$3)$ Formulate the total cost associated with selling units$\mathrm{.}4)$ Formulate profit associated with selling units$\mathrm{.}5)$ How many cellphone covers should be sold to make $$3000$ profit?$6)$ What should be the price of a cellphone cover to make $$500$ profit by producing and selling