According to the pattern, the number of kernel of corn is double every day, so we can conclude that the number of kernel of corn oN as a function of the days x is given by:
[tex]N(x)=2^{x-1}[/tex]
For x = 21:
[tex]N(21)=2^{21-1}=2^{20}=1048576[/tex]
Since each kernel corn weighs 0.07, the total weight is given by:
[tex]\begin{gathered} Tw=0.07\cdot1048576 \\ Tw=73400.32g \end{gathered}[/tex]
