document.write( "Question 511581: How many seven-digit phone numbers are possible if the first two digits cannot be zero or one? \n" ); document.write( "
Algebra.Com's Answer #342325 by oberobic(2304)![]() ![]() ![]() You can put this solution on YOUR website! 7*7*9*9*9*9*9 = 7^2*9^5 = 2,893,401 \n" ); document.write( " |