Today, everything at a store is on sale. The store offers a 20% discount. A - If the regular price of an item is x dollars, what is the discount price in dollars?

B- The discount price of a hat is $18. What is the regular price?

I need the answer fast plz

Based upon past experience, barry expects no overdrafts. he expects no 2nd copies of statements. barry estimates that he will use network atms about 5 times a month with either bank. barry decides in the end to choose eecu. assuming that both banks provide the necessary services equally well, and based upon the tables of fees given above, how much can barry reasonably expect to save annually by choosing eecu in this case over e-town bank? a. $72 b. $78 c. $144 d. $24

The system of equations graphed below has how many solutions?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?