If the price is $36 and it was on sale for 25% off what was the sale price

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

Using elimination, what is -4x+2y=-12 4x+8y=-24