Question

expanded form:
(1) 6 x 104 + 2 x 103 + 7 x 10' + 3 x 100
(11) 9 x 106 + 8 x 105 + 7 x 104 + 6 x 103 +
5 x 102 + 4 x 101 + 3 x 10°
(iii) 3 X 10% + 1 x 107 + 2 x 105 + 6 x 103
+ 4 x 101 + 9 X 100​

Answer 1

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the first one is 6.44753E7

the second one is I don't know

the third one is 1.64915066025e12