How many subsets does a have? let a equals = startset 9 comma 10 comma 11 comma 12 comma 13 comma 15 endset {9,10,11,12,13,15}.

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?

Need asap. solve for the following inequality

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct