QUESTION $7$

Week$07$E Part $1$: Population modeling of periodic changes

deposit of $1200\mathrm{.}0$ dollars. At the end of every even month, $11\mathrm{.}0$ dollars is withdrawn for a life$-$insurance deduction.

The population equation is given by: $P(t+1)=P(t)+$ deltat $*($birth $-$ death$)*P(t)$;

When deltat is $1$ month, the equation can be written as birth $-$ death$)*P(t)$;

the remainder of $t$ divided by $2$ is $0.)$ The periodic correction should use mod to test the month.

model. Find $P.$

Create a plot to track the high$-$yield savings account balance from the beginning of January $2016$ through the end of the $29$ th month $($which is the same as the beginning of the $30$ th month$).$