What is the absolute value of y=2|x+3|-3

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?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.