Sparkle Travel Agency specializes in flights between Toronto and Jamaica. It books passengers on Ottawa Air. Sparkle's fixed costs are$ 29,500 per month. Ottawa Air charges passengers $1,600 per round-trip ticket.

Breakeven number of units = ____ / ____

Calculate the number of tickets Sparkle must sell each month to (a) break even and (b) make a target operating income of $19,000 per month in each of the following independent cases. (Round up to the nearest whole number. Forexample, 10.2 should be rounded up to 11.)

1.	Sparkle's variable costs are $42 per ticket. Ottawa Air pays Sparkle 10% commission on ticket price.
2.	Sparkle's variable costs are $35 per ticket. Ottawa Air pays Sparkle 10% commission on ticket price.
3.	Sparkle's variable costs are $35 per ticket. Ottawa Air pays $55 fixed commission per ticket to Sparkle. Comment on the results.
4.	Sparkle's variable costs are $35 per ticket. It receives $55 commission per ticket from Ottawa Air. It charges its customers a delivery fee of $5 per ticket. Comment on the results.