1.Find the value of A. Write down your full calculator display.
A= .
2.Give your answer to part (a) correct to
2.1.three significant figures;
The number= .
2.2.three decimal places.
The number= .
3.Give the answer to part (b) (i) in the form a×10$^k$, where 1≤a<10, k∈Z.
The number= ×10$^{-2}$.