Tell whether each equation is True, False, or Open. Explain. "must explain for credit" 1. 6-t=12

2. 7+(-5)=12

3. 31 - 15 = 22 + (-3)2

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?

Which function has the domain x> -11

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.