If 6 is 24% of a number, what is 40% of the same number?

(a) 8
(b) 10
(c) 15
(d) 20

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 do you use the elimination method for this question? explain, because i really want to understand!

When y’all answer can y’all explain too !