Find the number from each of the following expanded forms:

(a) 8 × 104 + 6 × 103 + 0 × 102 + 4 × 101 + 5 × 100

(b) 4 × 105 + 5 × 103 + 3 × 102 + 2 × 100

(c) 3 × 104 + 7 × 102 + 5 × 100

(d) 9 × 105 + 2 × 102 + 3 × 101

(a) 8 × 104 + 6 × 103 + 0 × 102 + 4 × 101 + 5 × 100

= 86045

(b) 4 × 105 + 5 × 103 + 3 × 102 + 2 × 100

= 405302

(c) 3 × 104 + 7 × 102 + 5 × 100

= 30705

(d) 9 × 105 + 2 × 102 + 3 × 101

= 900230

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