Please do ALL requirements $($questions $1-3)$

$1.$How much interest expense must be accrued at December$31,2018?($Round your answer to the nearest whole$$ dollar.$)$

$2.$Determine the amount of Wash $$Sales$\text{'}$ final payment on April $1,2019.$

$3.$How much interest expense will Wash Sales report for $2018$ and for $2019?($If needed, round your answer to the nearest whole$$ dollar.$)$