Calculate the number of tickets Sunrise must sell each month to (a) break even and (b) make a target operating income of $13,000 per month in each of the following independent cases. (Round up to the nearest whole number. For example, 10.2 should be rounded up to 11.) 1. Sunrise's variable costs are $34 per ticket. Bolton Air pays Sunrise 10% 2. Sunrise's variable costs are $30 per ticket. Bolton Air pays Sunrise 10% 3. Sunrise's variable costs are $30 per ticket. Bolton Air pays $46 fixed 4. Sunrise's variable costs are $30 per ticket. It receives $46 commission per commission on ticket price. commission on ticket price. commission per ticket to Sunrise. Comment on the results. ticket from Bolton Air. It charges its customers a delivery fee of $8 per ticket Comment on the results