need help

#17 Expenses for a Pizza restaurant include raw material for pizza at $5.00 per slice, $113.00 as monthly rental and $33.00 monthly as insurance. Lost sale expense is considered to be $5.00 per unhappy customer. Leftover Pizza can be sold for $3. The restaurant is open 25 days in a month. Today the restaurant prepared 200.00 pizza slices and sells them for $11.00/slice. There was a party at a nearby office so the demand for pizza went up to 221.00 slices. How much profit did the restaurant earn today? Submit Answer format: Currency: Round to: 0 decimal places. #18 You run a school in Florida. Fixed monthly cost is $5,216.00 for rent and utilities, $5,684.00 is spent in salaries and $1,623.00 in insurance. Also every student adds up to $90.00 per month in stationary, food etc. You charge $632.00 per month from every student now. You are considering moving the school to another neighborhood where the rent and utilities will increase to $11,692.00, salaries to $6,330.00 and insurance to $2,374.00 per month. Variable cost per student will increase up to $166.00 per month. However you can charge $1,103.00 per student. At what point will you be indifferent between your current mode of operation and the new option? Submit Answer format: Number: Round to: O decimal places. #19 You run a hospital with 100 rooms. Fixed daily cost is $900.00 which includes staff salary, property charges, maintenance etc. Variable cost per room is $18.00 which includes cleaning, equipment rentals, utility cost etc. which is incurred only when the room is full. You charge $68.00 per room per day. You sold 50.00 rooms today, how much profit/loss did you earn for today. Submit Answer format: Currency: Round to: O decimal places