On $4$ January $2020$ Thabo deposited P$7800$ into savings account. The simple interest rate agreed upon was $6\mathrm{.}2\%$ per annum. What will be accumulated amount in the savings account on $21$ November $2020?($Assume a year has $365$ days$)$ 

 

$$Joanna has taken an endowment policy that matures in $30$ years. The expected interest rate per year is $11\mathrm{.}15\%.$ Her annual payment $($at the end of each year$)$ is P$8000.$ Calculate: 

 

i$.$ The present value of the policy

ii$.$ The future value of the policy

c$.$ Find the value of $$10,000$ in $10$ years. The investment earns $8\%$ for four years and then earns $4\%$ for the remaining six years.

d$.$ P$1400$ was left in an investment account for $20$ years and it earned $12\mathrm{.}5\%$ per year compounded half$-$yearly. Calculate the value of the investment after $20$ years.