Atotal of 431 tickets were sold to a concert, bringing in a total of $5,332. two types of tickets were sold: adult tickets were sold for $14 each and student tickets were sold for $8 each. how many adult tickets were sold? type in your numerical answer only; do not type any words or letters with your answer.

Rolston music company is considering the sale of a new sound board used in recording studios. the new board would sell for $27,200, and the company expects to sell 1,570 per year. the company currently sells 2,070 units of its existing model per year. if the new model is introduced, sales of the existing model will fall to 1,890 units per year. the old board retails for $23,100. variable costs are 57 percent of sales, depreciation on the equipment to produce the new board will be $1,520,000 per year, and fixed costs are $1,420,000 per year.if the tax rate is 35 percent, what is the annual ocf for the project?