Kerys is trying to expand the binomial ( 2 x + y ) 4 using the binomial theorem expression, ∑ k = 0 n ( n k ) a n − k b k . What value(s) should she substitute for k? Why?

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

This is so hard and it’s for a test

Adistribution has the five-number summary shown below. what is the third quartile, q3, of this distribution? 22, 34, 41, 55, 62