Which system of equations will yield the same solution to the system below? x-y=3
2x-3y=-1

A- 2x-2y=-6
2x-3y=-1

B 2x-2y=6
2x-3y=-1

C -2x+2y=-3
2x-3y=-1

D 3x+3y=9
2x-3y=-1

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

Can someone me with this problem . show your work .

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?