How would I calculate the blanks it asks me to calculate? Could you also show me how the calculations are done? Also, for the break even point calculation, would it be R = Variable manufacturing costs + Fixed Manufacturing costs OR would it include all costs and expenses?

Ronald Enterprises Ltd. has estimated the following costs for producing and selling 16,600 units of its product: Direct materials $83,000 Direct labour 132,800 Variable overhead 49,800 Fixed overhead 30,000 Variable selling and administrative expenses 49,800 Fixed selling and administrative expenses 37,500 Ronald Enterprises' income tax rate is 40%. Given that the selling price of one unit is $39, calculate how many units Ronald Enterprises would have to sell in order to break even. Break-even units LINK TO TEXT Assume the selling price is $44 per unit. Calculate how many units Ronald Enterprises would have to sell in order to produce a profit of $25,700 before taxes. Target units units LINK TO TEXT Calculate what price Ronald Enterprises would have to charge in order to produce a profit of $27,000 after taxes if 7,500 units were produced and sold. Ronald Enterprises should charge per unit 29 W PRonald Enterprises should charge $ per unit LINK TO TEXT Calculate what price Ronald Enterprises would have to charge in order to produce a before-tax profit equal to 30% of sales if 9,700 units were produced and sold. (Round answer to 2 decimal places, e.g. 15.25.) Ronald Enterprises should charge $ per unit