Maplewood Supply received a $$5,250$ invoice dated $\frac{4}{15}\frac{?}{20}.$ The $$5,250$ included $$250$ freight. Terms were $\frac{4}{10},\frac{3}{30},\frac{n}{60}.($If more than

one discount, assume date of last discount.$)$

a$.$ If Maplewood pays the invoice on April $27,2020$ what will it pay?

Payable amount

b$.$ If Maplewood pays the invoice on May $21,$ what will it pay?

Payable amount