Hannah went to a restaurant. The bill was 50$. The tax was 6%. The tip was 20%. How much was hannah's over all bill ( i want awnser and the progress. i cant rember how to do it. so can you tell me how putting down how you did it)​

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

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80