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Step-by-step explanation:

3). Naomi walked 4560 m to the nearest 10 m. Peta walked 4600 m to the nearest 100 m.

a). 4555 m ≤ n ≤ 4564 m

    4550 m ≤ p ≤ 4649 m

b). If n = 4555 m and p = 4550 m

   Then Naomi walked more than Peta

   If n = 4555 m and p = 4555 m

   Then Both Naomi and Peta walked exactly the same.

   If n = 4555 m and p = 4649 m

   Then Peta walked further than Naomi.

  Therefore, all three statements could be true.

4). (a). x = 120 to nearest 10 → 115 ≤ x ≤ 124

(b). y = 1.24 to 2 decimal places → 1.24

    (Already given in 2 decimal places)

(c). z = 0.0124 to 3 significant numbers → 0.0124

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step-by-step explanation:

a

step-by-step explanation: