The number he/she is thinking of is x.(an unknown number) so x=97.3×2 as he/she halved it to get 97.3 so do the inverse operation which is doubling to get the answer Bridget was thinking of.
Hello : hello : the nth term is : An=A1×r^(n-1) <span>The first term of the sequence is 0.01 r =An/an-1 =20 </span><span>An =0.01(20)^n-1...(answer :D ) </span>