Help me please?

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

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

He concluded that a heavier object dropped from the same height as a lighter object will land