i need help please with all these questions step by step

#9 A Restaurant is open only for 25 days in a month. Expenses for the restaurant include raw material for each sandwich at $4.00 per slice, $1,099.00 as monthly rental and $435.00 monthly as insurance. They consider the cost of lost sales as $5.00 per item. They are able to sell any leftover sandwiches for $3. They prepares 200.00 sandwiches and sells them at a rate of $13.00/sandwich. Today there was a party at nearby office so the demand for sandwiches rose to 217.00. How much profit did the restaurant earn today? Submit Answer format: Currency: Round to: 0 decimal places. #10 You run a school in Florida. Fixed monthly cost is $5,785.00 for rent and utilities, $6,131.00 is spent in salaries and $1,144.00 in insurance. Also every student adds up to $91.00 per month in stationary, food etc. You charge $690.00 per month from every student now. You are considering moving the school to another neighborhood where the rent and utilities will increase to $10,545.00, salaries to $6,509.00 and insurance to $2,207.00 per month. Variable cost per student will increase up to $175.00 per month. However you can charge $1,091.00 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. #11 Expenses for a Pizza restaurant include raw material for pizza at $4.00 per slice, $103.00 as monthly rental and $49.00 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 $15.00/slice. There was a party at a nearby office so the demand for pizza went up to 210.00 slices. What is the daily fixed costs expense? Submit Answer format: Currency: Round to: 0 decimal places. #12 You run a school in Florida. Fixed monthly cost is $5,211.00 for rent and utilities, $5,760.00 is spent in salaries and $1,708.00 in insurance. Also every student adds up to $91.00 per month in stationary, food etc. You charge $639.00 per month from every student now. You are considering moving the school to another neighborhood where the rent and utilities will increase to $11,552.00, salaries to $6,163.00 and insurance to $2,458.00 per month. Variable cost per student will increase up to $195.00 per month. However you can charge $1,054.00 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: 0 decimal places