Answer the $2$ questiones

I.As an optician, on average, you sell eyeglasses for $80/pair. For every pair that you sell, the lenses, eyeglass frame, and the eyeglass case cost you altogether on average, $55. Your total fixed expenses are $500/month. For every pair of eyeglasses you sell, the contribution margin is: the front of your answer. 2.From the information below; Current ( net) equipment calculate the quick ratio for the HSA corporation , (calculate the contribution margin). Be sure to put a $ in