A food truck caters an event attended by 100 guests. Every guest orders one of two possible dishes: a salad or a turkey plate. The price of each meal decreases as more of that particular type are ordered. The price of a salad is $10.00 minus $0.06 for each salad ordered. The price of a turkey plate is $12.00 minus $0.02 multiplied by the square of the number of turkey plates ordered. Guests pay for their meal only after everyone has placed their order. Using differentiation, find the maximum revenue for the food truck. Remember that the number of meals is a positive integer. Round revenue to the nearest cent. maximum revenue: $

A man decides which load plan is the best choice if he has an average of 1000.75 min of call in 30 days. Help him choose which plan is the best. Plan X: A fixed fee of £1000 for 30 days for unlimited calls. Plan Y: A fee of £100 for 30 days and a charge of £0.8 per minute (or fractional part) for all calls. Plan Z: A fee of £600 for 30 days, for a total of 30 hours of calls. An additional charge of £0.2 per minute (or fractional part) for all minutes exceeding 30 hours.

Each item a firm makes costs $9 to manufacture. If the items sell for $21, and the firm's fixed costs are $97,000, find the break-even quantity. (Round to the nearest whole number).

Bessy has 6 times as much money as Bob, but when each earns $6, Bessy will have 3 times as much money as Bob. How much does each have before and after earning the $6?.