$($Related to Checkpoint $5\mathrm{.}6)($Solving for $)$ Kirk Ven Howten, who has been marned for $22$ years, would the to buy his wibe an expensive dionond ring with a pletinum satting on their $30-$gear zeding anniversary. Assume that the cost of the rimg wil be $$10\mathrm{.}000$ in $8$ years. Kirk currently has $$4\mathrm{.}474$ to invest. What annual rate of nebum must Krik eam on his investment is accumulate enough money to pay foe the ring?

The annual rate of return Kirk must eam on his investment to accumulate gnough money to pay for the ring is

$6.$ Round to two diocomal places$)$