Answer:
448
Step-by-step explanation:
we have four spaces
_ _ _ _ but we know that they end in 3
_ _ _ 3 so the question changes how many 3 digit numbers can be formed without repetion and 3
so the first one has 8 options 1,2,4,5,6,7,8,9 we can have 0 here.
the second one 8 we count 0
the third 7 so we have
8*8*7*1=448
dont know why it doesn't fit.
