Condense and evaluate the following expression using identities: cos pi/3 * cos (5pi)/6 - sin pi/3 * sin (5pi)/6

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.

Who long does it take to drive 150 miles at 45 miles per hour