Office$-$to$-$Go occupies $4,000$ square feet of commercial space in the Calgary suburbs. The company provides meeting rooms and hot$-$desking for self$-$employed individuals and small businesses that are too small or have chosen not to lease a brick$-$and$-$mortar location. Utility costs have both fixed and variable components and the total utility cost depends on number of square feet of space rented out each month. During the month of November, $90\%$ of the space was occupied and the total utility cost for the month was $$10,900.$ During July, the slowest month of the year, only $50\%$ of the space was occupied. A total of $$8,500$ in utility cost was incurred during July.

Required:

Estimate the variable cost of utilities per square foot per month.

Note: Round your answer to $2$ decimal places.

Estimate the total fixed cost of utilities per month.

Assume that $3,000$ square feet of space will be occupied during December. What total utilities cost would you expect the company to incur in December?