792.1 = (7 x 100) + (9 x 10) + (2 x 1) + (1/10)
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sqrt(7921 = 89 per calculator Mechanically we note that 7921 is near 8100. NB sqrt(81) = 9 so it follows that sqrt(8100) = 90 Since 7921 is slightly less than 8100 then try a slightly lower number than 90. So try 89 89x 89 = 89^2 - 7921 So it foilows that the sqrt( 7921) = 89 The Answer!!!!!
89
6 tenths in expanded form
5.35 X 101 is the expanded form of 53.5
Expanded form is 20 + 4 = 24