i need help with p9.13

P9.13 The manager of the Hospitality Inn has developed regression analysis equations for forecasting the hoter's dining room sales volume based on the hosol's anticinated guestnight count. The foonthily equations (Where Y equals the forecast number of meals to be served, and X equals the number of hotel guests) follow Breakfast Y=750+0.82x Lunch Y=900+1.15x Dinner y=1,200+0.42x The hotel has 100 roome. Ite occupancy in Noventer is expected to be 70% and its double occupancy rate is 40% The average meal checks lobow Calculate the dining rooms forecast meal period sales, both in number of guests and sales revenue dotars, for the month of Nowember