S=Selling price 135 V=Variable cost 75 F=Fixed cost 3300 Let quantity be Q The formula to break even is 135Q-75Q-3300=0 Solve for Q 60Q-3300=0 60Q=3300 Q=3300/60 Q=50 So the store must sell 50 bicycles to break even
18+2.50=20.50 so tax is 10% so you can put that into a calculator as 20.50*0.10 which equals 2.05 so just add 20.50 and 2.05 which is 22.55 is your final answer
