PLSSSS I NEED HELP FOR THIS NOW

Ana's General Mechandise was able to sell 49 tech boxes, 97 special coolant and 74 cognitive chips for the Previous month. The selling price ratio of these items is 12:7:13 respectively and the selling price of 1 tech box is 1,800. The margin per unit of each merchandise is 400 and 350 and 450 respectively. The operating expenses for the previous month amounting to 34,230 is divided between personnel expenses, delivery expenses, miscellaneous expenses and utilities expenses in a 40:36:37:50 ratio respectively. They also earned an interest equal to 3% of the net sales and paid interest on a bank loan equal to one-third of operating expenses. Solve for thiss :

a. The selling price for special coolant and cognitive chips

b. The net sales for the previous month.

c. The total cost per item

d. The amount of operating expenses per category

e. Net profit and income statement for the previous month.