Vicky's fingernail grows one nanometre in one second. One nanometre is 1 × 10⁻⁹ metres. Vicky calculates how much her fingernail grows in one hour. Find this length, in standard form, giving your answer

1. (a)Vicky's fingernail grows one nanometre in one second. One nanometre is 1 × 10⁻⁹ metres. Vicky calculates how much her fingernail grows in one hour. Find this length, in standard form, giving your answer
2. (a)(i)in metres,[1]
3. (a)(ii)in millimetres.[1]
4. (b)It is given that 2 × 10³(d + 3 × 10²) = 8 × 10⁶. Find d.[2]