Need help with these two questions please! Thank you,

7. Halston Company has no beginning work in process; 5,000 units are transferred out and 1,000 units in ending work in process are 25% finished as to conversion costs and fully complete as to materials cost. If materials added and beginning work in process materials cost totals $18,000, how much is the materials cost per unit if the weighted average method is used? a. $3.00 b. $3.43 c. $3.13 d. There is not enough information provided e.None of the above 8. The following monthly data are available for Wackadoos, Inc. which produces only one product: Selling price per unit, $42; Unit variable expenses, $14; Total fixed expenses, $42,000; Actual sales for the month of June, 4,000 units. How much is the margin of safety for the company for June? a. $70,000 b. $105,000 c. $63,000 d. $2,500 e. None of the above