Can some one please help me? -3x-5=16

Definition: es. this is a disadvantage or weak point that makes someone or something less effective.

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00