Please help solve

18. Laura has 'lost' Jordan's phone number. All she can remember is that it did not contain a 0 or 1 in the first three digits. broope to) lipbent on 1. How many seven-digit telephone numbers are possible if repeated digits eaton are allowed? s erl) to Jest ving sbensO agile 2. Laura remembers that not only was there no O's or 1's in the first three digits, but also that there were no repeated numbers in the entire phone number. How many less combinations will she have to try now? on/ 107 A Lari and Julie will not dance world Snorelib meless