To pay for his academic fees, Tarek, a college student is selling a computer accessory to other students His cost to purchase cach plece is $79, and he is planning to sed the accessories for $106 each Fixed costs for advertising amount to 5490 (a) Compute the contribution margin (by Compute the contribution rate (c) Compute the break even point in units (dy Computo the break-oven point in sales dollars. (a) The contribution margin per unit is s (Type a whole number th) The contribution rate is 1% (Round to two decimal places as needed le tha tenkoven point in units is round up to the nearest unit) (a) The Wronkeven point in sains dollars is S. Round to the nearest cantariedad