Someone please help me on this and show work I need help I’ll give brainliest

If you are just building your payment history, how many points from a perfect score will you possibly miss?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible